Wasting food costs us an extraordinary amount of money. According to the RAP group, the average family throws £680 of food away every year - which adds up to an astonishing 7.2 million tonnes of food. In most of these cases, we have optimistically bought something and simply not got around to using it before it forms a mouldy mush in the bottom of the fridge.
But a new invention could dramatically transform those figures.
Bread is one of the worst offenders when it comes to sneakily going green when it disappears out of sight in the bread bin - apparently almost a third of all the bread we buy goes into the bin.
Now an American firm has invented a way to keep bread free from mould for 60 days - up from roughly 10 days when it's not treated.
According to a BBC report, it is zapped in a kind of microwave, which kills mould spores. The invention could also work wonders on the longevity of everything from turkey to fresh vegetables.
It would have the added advantage that manufacturers could use fewer preservatives - and fewer ingredients to cover up the taste of the preservatives - so we'd have fewer chemicals in our food too.
There's a downside though: unfortunately these zapping machines aren't cheap to buy or run, so using them would push up the cost of bread in an insanely competitive market where margins are already tiny. It may just not pay anyone to use this invention.
Plus, there's the PR problem of getting people to be happy eating very old bread.
The experts suggest that there's still so much that we can do in the home to cut down on waste without expensive inventions. If you have leftover slices of bread that are past their best, it may make more sense to blitz them in the food processor and turn them into bread crumbs - or tear them up and put them into tomato salad.
Likewise we should think harder about what we buy, how much we cook, and how we store food. This could help us waste less than 50% of the food we currently throw away - without the need for fancy inventions that will lead to more expensive bread.
In many cases, planning a week of meals and checking the cupboards before we go shopping could cut waste by even more than 50%.
But what do you think? Would it bother you if your bread was two months old, or is this a brilliant solution? let us know in the comments.
10 of the biggest consumer rip-offs
Would you eat bread that lasts 60 days?
Using a mobile phone to make and receive calls, send texts and browse the web while abroad can be extremely costly – especially if you are travelling outside the European Union (EU), where calls can cost up to 10 times as much as at home.
To avoid high charges, Carphone Warehouse suggests tourists ensure a data cap is in place, use applications to check data usage, turn off 'data roaming', avoid data-intensive applications such as Google Maps and YouTube and use wi-fi spots to update social networking sites.
Payment Protection Insurance (PPI) is supposed to help people to continue meeting their loan, mortgage or credit card repayments if they fall ill or lose their jobs. However, policies are often over-priced, riddled with exclusions and sold to people who could not make a claim if they needed to.
At one point, sale of this cover - which was often included automatically in loan repayments - was estimated to boost the banks' profits by up to £5 billion a year.
Now, though, consumers who were mis-sold PPI can fight back by complaining to the bank or lender concerned and taking their case to the Financial Ombudsman Service (08000 234567) should the response prove unsatisfactory.
It could be you, but let's face it, it probably won't be. In fact, buying a ticket for the Lotto only gives you a 1 in 13.9 million chance of winning the jackpot.
With odds like that, you would almost certainly be better off hanging on to your cash and saving it in a high-interest account.
No-frills airlines such as EasyJet may promote rock-bottom prices on their websites. But the overall fare you pay can be surprisingly high once extras such as luggage and credit card payment fees have been added - a process known as drip pricing.
Taking one piece of hold baggage on a return EasyJet flight, for example, adds close to £20 to the cost of your flight, while paying by credit card increases the price by a further £10.
It may therefore be worth comparing the total cost with that of a flight with a standard airline such as British Airways.
Cash advances, which include cash withdrawals, are generally charged at a much higher rate of interest than standard purchases.
While the average credit card interest rate is around 17%, a typical cash withdrawal of £500, for example, is charged at more than 26%.
What's more, as the interest accrues from the date of the transaction, rather than the next payment date, costs will mount up even if you clear your balance in full with your next payment.
Supermarkets such as Tesco and Asda often run promotions under which you can, for example, get three products for the price of two.
However, it is only worth taking advantage of these deals if you will actually use the products. Otherwise, you are simply buying for the sake of it, which is a waste of your hard-earned cash.
Buy a train ticket at the station on the day of travel and the price is likely to give you a shock - especially if you are travelling a long distance at a busy time of day.
However, you can cut the cost of train travel by 50% or more by going online and making the purchase beforehand - especially if you book 12 weeks in advance, which is when the cheapest tickets are on sale.
Other ways to reduce the price you pay include avoiding peak times and taking advantage of so-called carnet tickets, which allow you to buy, for example, 12 journeys for the price of 10.
Most High Street banks offer packaged accounts that come with monthly fees ranging from £6.50 up to as much as £40, with a typical account charging about £15 per month.
Various benefits, such as travel insurance and mobile phone insurance, are offered in return for this fee. But whether or not it is worth paying for them depends on your individual circumstances.