Ha, I wouldn't pick up anything lower than a 50p, unless I was having a really good day, then 20p and 10p would be picked up.
When I was a kid, my siblings (2) practiced playing music in some orchestra or something, but it was held in a school or something. My dad and me would get their early and walk around finding vast ammounts of money, £10 (under mostly, around £5) was probably the most we got, I wouldn't be able to remember. But I think my dad would either split it half way, or let me buy stuff, like lego, bionicle or digi/poke-mon toys.
Pity lego is so expensive now, otherwise I'd go out tomorrow and buy some for nostalgia-ing.