I've read about 13 pages of replies so far... good stuff. I really appreciate some people laying out what they've done long-term for years and how it's going for them.
My advice:
Keep a ledger of your expenses, and go over your spending habits. This is very easy to do with banking statements, or for those who use cash just receipts or a memo book. You may not want to try to save every penny, because really your time is worth more than what you'll save, but maybe you'll find patterns.
For example, if every time you go to a certain city you eat at a specific restaurant because you like the food, maybe next time go try another place, you can see a lot of place's menus online nowdays and see if you'll save money or not in a few minutes, otherwise see if you can pick up a menu.
If you buy a bag of chips every payday when you're cashing your paycheck, look into having your wages direct deposited into a bank account.
When you buy a drink every time you stop for gas because you like the cashier, ask her out already and save that money for a date.
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More advice:
1. If you have even a modicum of talent in the area, please learn to cook. It will save you a lot of money and your life will also be more fulfilled. : )
2. Have more than just one primary source of income. This could even be just helping friends sometimes with their computer for some cash.
3. Help your friends and family who aren't good with money. They will appreciate it and it gives you experience for your own.