Here is a 1p coin. Two of these coins are worth the same as a 2p coin. Here is a 5p coin. A 5p coin is worth the same as five 1p coins. Two 5p coins are worth the same as a 10p coin. Two 10p coins ...

"Take a wander around the edge of your shed or home and look closely and any gap bigger than a 5p coin should be sealed up immediately. "The last thing you want is them entering your home and snacking ...