If you’re not lucky enough to count any of the much sought-after Olympic coins among your haul, there’s still a chance you could make a few hundred pounds just from selling loose change. Kate Morgan, from Change Checker, said: “People have long loved collecting coins, but popularity sky-rocketed in 2011 with the 29-coin Olympic series was issued.” If you want to find out if you’re sitting on a pile which could make you a mint, the ‘Scarcity Index’ from Change Checker, is a useful resource which reveals Britain’s most sought after circulation coins.