Scott Adams, in the form of his alter-ego Dilbert, has laid out the 9 steps to financial security. Here they are:

1. Make a will
2. Pay off your credit cards
3. Get term life insurance if you have a family to support
4. Fund your 401k to the maximum
5. Fund your IRA to the maximum
6. Buy a house if you want to live in a house and can afford it
7. Put six months worth of expenses in a money-market account
8. Take whatever money is left over and invest 70% in a stock index fund and 30% in a bond fund through any discount broker and never touch it until retirement
9. If any of this confuses you, or you have something special going on (retirement, college planning, tax issues), hire a fee-based financial planner, not one who charges a percentage of your portfolio