Industry estimates suggest as much as £15billion languishes in bank and building society accounts, National Savings and Investments products, pensions and life insurance plans - often opened decades ago and then lost in the mists of time. The Mail on Sunday shows you how to go on a treasure hunt and unearth the money that is rightfully yours.

Thanks to an £80,000 investment from fiery Dragon Deborah Meaden, Jordan Daykin turned the plasterboard fixing gadget he invented with his grandfather into a £20million pound business. Now aged 22, he left school with no qualifications at the age of 13 after his family fell on hard times and he was bullied by his peers. Jordan turned his life around by setting up no fewer than three businesses to ensure he was not a financial burden on his ageing grandparents.

A rising number of 'financial advocates' acting on behalf of people in need are being investigated over their decision-making. Figures obtained by insurer Royal London show that hundreds more 'power of attorney' cases are being probed by Government body the Office of the Public Guardian this year compared to last - a rise of nearly 46 per cent to 1,647. Some investigations are cases of theft and greed, while others are examples of people overstepping boundaries or failing to keep records correctly.

Four games into the World Cup and the Three Lions have hit the net no fewer than 9 times, costing Auto Trader £156,135. And with England favourites to beat Sweden on Saturday, it might get more expensive still.

In this series we are breaking the subject of income investing down into manageable chunks. In this, the final part, Norton delves into how to maximise your chances of investment success by managing a portfolio for total return.

Something fund managers and people with their own money to invest should consider now is, are the robots becoming better stock pickers than humans, just as they are better chess players? Another question worth asking is whether the robots will be assistants to humans - or replacements?

There have been several revisions to the Avios scheme over the years, unsurprisingly all meaning your points don't get you quite as much or they are harder to earn. But the scheme isn't worth ditching yet, particularly if you are clever about how you spend them your points. We have run the numbers and unearthed the tricks to stretching your points further afield.

Some 1,170 people affected by the scandal responded to a survey put out by Conveyancing Association and Homeowners Alliance, 98 per cent of whom claim they weren't told what they were getting into before viewing their properties. Just 2 per cent of purchasers said they had received enough information prior to viewing a property to make an informed decision, and a scant 3.8 per cent of respondents said they had received vital details prior to purchase. According to the Conveyancing Association, this failure to disclose the leasehold details breaks consumer protection rules and could mean developers face criminal investigation.

There's been a lot of talk this year about the 75th anniversary of the death of Beatrix Potter. The children's author was inspired by her childhood holidays in the Lake District and later bought a home in the area. At her death, she left 14 farms and 4,000 acres to the National Trust - a gesture that paved the way for the creation of the Lake District National Park, the largest national park in England and now a world heritage site. Such is the popularity of the area that a small cottage in Ambleside, close to Wray Castle where her family used to stay on the shores of Windermere, can sell for more than £350,000.

People should save at least 12% of their salary into pensions and employers should be made to stump up half of that, according to a new report. Savers should also be given meaningful retirement targets based on real-life ambitions like being able to afford an annual holiday, a reasonable car, meals in restaurants and bottles of wine, recommends an influential pension industry group.

What Car? received feedback about 14,000 UK-registered vehicles in the latest reliability survey, with owners reporting how many faults their motors had in the last year. These were the 10 models with the worst track records, including (from top left to right) the Fiat 500X, Nissan Qashqai, Volvo XC90, Mercedes E-Class, Range Rover Sport and Jeep Renegade.

The will they or won't they game is back on. No, I'm not talking about England's tilt at World Cup glory after winning their first knock-out tournament match since before the financial crisis. This game rolls round more often than English footballing success - it's the question of are interest rates about to rise? And August is the date we're now playing for.

In a move that could put it in direct competition with the other commercial broadcasters ITV, Sky and Channel Four, and BT the internet giant would offer programmes at no cost or by funding them through adverts shown during shows. Its plan emerged in a job advert for a new London-based 'head of free to air TV and advertising'.

Additional charges, unforeseen insurance costs and poor customer service all related are common car rental grumbles reported to This is Money by readers. With this in mind, we listed the best insider tips for holidaymakers to avoid being ripped off at the rental desk and save money in the process.

Insurance group Legal & General and the European Investment Bank have already committed around £180million to build the £429million Royal Liverpool Hospital. New funds from the two lenders could ensure the delayed facility is finally completed next year, more than two years behind schedule.

A gale is blowing through UK high streets, and retail and restaurant chains are feeling the sting. In this cut-throat environment where relevance is paramount, household names Toys R Us, Maplin, East, Poundworld and Prescott & Conran have already gone to the wall. Other marginally fitter chains are frantically closing shops.

The absolute maximum the Government allows you to build up in a pension is £1.03m But many workers whose salaries have risen to about £80,000 unwittingly breach this allowance. The result is a £70 million jump in pension tax collected by HM Revenue & Customs over the past two years - and the numbers of people caught out is doubling.

I pay Virgin Mobile £6 per month for a SIM-only tariff. I occasionally exceed my usage, but never by more than £5 or £6. But, on May 8, I got a bill for £91.10. My account details suggested I'd used the internet and exceeded my limit on most days from April 7 to May 5. The time of the usage on April 7 was at 7am and the rest at midnight.

Here's a thought to hold on to as you slog through a day's work in this heat: you may have won a life-changing £100,000 Premium Bond prize, but no one's told you because it's been allocated to someone long dead. There are all sorts of conspiracy theories surrounding Premium Bonds, such as that older ones are less likely to be drawn, or those held by people in the South East have more chance of winning.

Car owners face a postcode lottery of widely differing charges - including administration fees and idiosyncratic add-ons - depending on where they live in the UK. The audit by consumer motoring experts at Carbuyer and Auto Express of charges from 243 UK councils running controlled parking zones - dubbed CPZs - reveals how motorists are paying hundreds of pounds a year into council coffers to park in their own streets.

The band of secret enforcers - with an average age of 75 - have all fallen victim to postal fraud in the past. Now they are turning the tables on the scammers who cheated them out of their life savings. Sigrid Hambley became a Mail Marshal after falling victim to a scam. She received a letter from a fake law firm telling her that a distant relation had left her £2m in their will

It's not rare to see a house for sale with an annexe, or even some outbuildings, but a Devon farmhouse on the market stands out from the competition with a unusual feature indeed. The house, near Tiverton, has an aircraft hangar and a 300m runway that is suitable for light aircraft. The six-bedroom house sits in almost 60 acres and comes with various outbuildings that include a separate two-bed barn conversion, as well as small areas of woodland.

Marcus says it will offer savings products firmly aimed at the UK retail market in the late summer having already secured its banking licence. The accounts it offers in the US have proved incredibly popular. Within an 18 month period, it garnered a mammoth $22billion in deposits and approved $3billion in personal loans.

The Bank of England's Monetary Policy Committee kept interest rates on hold at 0.5 per cent, in spite of forecasts of a 90 per cent chance of a rise just three weeks ago. Policymakers voted 7-2 for a hold, with the two members who called for a rise saying that they believed there were 'upside risks' for inflation.

Choosing the right DIY platform is crucial but a wealth of choice and changes to charges have left many investors scratching their heads. We pick some of the best. We also highlight why investing in an Isa makes sense, as it should protect your hopefully growing investments from tax forever.