Where can you exchange euro coins for british pound coins?
Banks and the Post Office are not interested in exchanging coins unless you have a large volume of them (check the post office website – they don’t exchange coins), and if you do find one that will exchange a small amount, then chances are that you will get a pretty poor exchange rate. Travelex has coin exchanging machines (http://www.travelex.co.uk/) or you could use good old Ebay to offlift them – (but of course you are not going to get the full rate for it again) Alternatively some central london stores will take payment in Euros, M&S is one of them.