I went to the dollar store yesterday and bought a cork board, and some Disney stickers. I decorated the frame, and put the word "expenses" on the top. I know what my weekly budget is, so I got some envelopes and broke it down into categories eg. groceries, meals out, smokes, lottery tickets, extras, etc. Then I figured out what I spend a week on each of these things ($70/week on smokes, $60-$150/week on groceries). At the beginning of the week, I will put the amount I spend on each into the envelope, and take it as I need it. For eg., I buy a pack of smokes everyday on my way to work. Now, instead of bringing more money than I need (and risking spending that, too) I will only grab $10 that I need. The change goes back into the envelope. At the end of the week, any change in the envelopes goes into the change jar. I'm hoping it will help me cut down on my smoking, cut coupons etc. For me, this is a good idea, becsause I'm very impulsive, and if I see something I want, and don't usually think twice. It'll be fun at the end of the week to see what changes I've had to make to ultimately get what I want.