8) Budget for spending on yourself.
I know this sounds counterproductive. Just bare with me. You ever get frustrated on a cold turkey diet and end it by eating EVERYTHING? We tend to budget our money with the same willpower we diet with. If you don’t leave a little bit of wiggle room to treat yourself, you will eventually become frustrated with your money system and impulse buy in a way that completely jacks up your budget. Set aside whatever you can comfortably spend to keep yourself in check.