I did this thing last year where I collected all my 1p, 2p and 5p coins up into this bad boy all the way through uni. At the end of the year I tipped his contents into the coin sorting machines and donated it to charity.
Well, this year, I did it again. Just off to find one and see how much I've got in total. It was only something like £12 last year, but I hope I can beat it. =]