All my change goes into a plastic margarine container on top of my dresser each evening. About once a month it is full to the brim with a mix of pennies, nickels, dimes and quarters. I average between $33 and $36 every time I take it to the bank and convert the coins to cash. Over $400 a year for my "Me" fund. Hedonistic toys that I "want", but do not need. My 2005 Christmas present to myself was a set of Grado SR-325i headphones...
This is the tried and true method, I believe. He had two containers on his dresser, one for pennies. It didn't get dumped as often as the other coins did, but we always made dumping either one an occasion. "Looks like it's time for a change-dumping ceremony!" Meant we dropped whatever we were doing to go empty the change in the jar. (By the time it was full, it weighed about 40 pounds!)