Hi there. I've got quite a few non-mainland UK coins that I've collected from my change over the years, mainly pound coins, 20 pence coins and a 5 pence coin. The ones I have are from the Isle of Man, Gibraltar, Falklands, Jersey and Guernsey. As they're the normal coins you'll find in your change when you go these places, in terms of their value is there any point in me keeping them (as someone who lives in mainland Britain)? I'm saving up for a trip at the moment and if these aren't worth holding onto I'll put them into my savings jar. Thanks!