also ensure that you stay ahead of inflation. 5. One of the best investments you can make is to first pay off all your high credit card debts. Credit cards typically carry a high interest rate and by paying off these debts, you get one of the best returns available which also is tax-free. 6. If you are losing sleep over an investment, whether its a stock, mutual fund, or retirement plan, its not worth it! Your lack of sleep is probably a good indication that it may be too risky, too good ...