Money Miles

Your stash of cash may not earn much interest, but it can generate frequent-flier miles. You can claim one air mile for every $10 you invest for a year in American AAdvantage Mileage Class funds. Discount broker Jack White & Co. (800 455-1123) offered a regular no-load money-market fund in August (current yield 2.91%) and added municipal and Treasury money-market funds in November.