In the spirit of bringing you everything and anything that may make you some money, allow me to introduce you to ‘wombling’. Apparently this works very well, but I’d be disappointed if you couldn’t find a more interesting use for your time. Anyway, here goes.
The first thing you need to do is go to your local Asda or Tesco supermarket and find a bin. Look through the bin and dig out as many receipts as you can (I can sense your excitement growing!). Take the receipts home and log on to the supermarkets price check websites., and enter the product codes to see whether the same items are available cheaper at the competitive supermarket. Both Asda and Tesco offer price guarantees, promising to refund the difference in price if the product is being sold cheaper elsewhere. This is usually paid in vouchers.
Tesco pays double the difference in vouchers if a basket of goods you buy there is cheaper at Asda. Asda pays the difference plus 1p if a basket there is not at least 10% cheaper than the nearest rival out of Morrisons, Sainsbury’s, Tesco and Waitrose.
Apparently both Asda and Tesco accept that this is completely legal, and seem pretty relaxed about it all. Hardly surprising really. Even if you’re not a customer, all they’ve given you is vouchers to spend in the store. While you’re there, you’re highly likely to spend the vouchers and a great deal more, meaning any profit they lost from handing out the vouchers is more than recouped