
1. Invest in your 401K as soon as you can, and don't touch it. Even if it's only $50/month to start.
2. Find a way to pay for student loans (gov't, military, public interest, etc.). It may rob you of a little flexibility, but well worth it in the long run.
3. Save 10% of your income regardless, and never touch it. In fact, put it in an account you don't use and have it auto-deducted from your check. You'll never miss it.