1. Quit trying to cook at home. I hate it, I usually end up wasting a ton of money on food that I get bored of, and half the time, it tastes terrible. It always seems like such a good idea to try new stuff, yet most of the time, I'm throwing it out after one meal since even if it is OK, I usually don't feel like eating it again. I actually save money by eating out instead of cooking for one at home.
2. Quit spending so much and over tipping when I go out.
3. Spend less time screwing around online.