As fun as finding winning stocks is (and trust us, it really is fun), your allocation to stocks (equities) is only one slice in your total investing pie. Asset allocation basically comes down to how much you should have in cash, how much in bonds, and how much in stocks. The Fool’s four rules for asset allocation will help you slice up your portfolio into these important pieces. Rule 1 If you need the money in the next year, it should be in cash. You don’t want the down payment for your vacation home to evaporate in a stock market — or bond market — crash. Keep it in a money m...