Q. I have 30,000 frequent flyer miles with United that will expire in November. In order not to lose these miles do I just have to book a flight before the expiration date?  If I'm unable to plan a trip what would be the best alternative way to use these miles?

A. There's an easy way to preserve your hard-earned frequent flyer miles, without having to book a trip. All it takes is a little shopping. You'll find many companies that are affiliated with the airlines' online shopping programs. No need to buy anything expensive. Even a piddly little three-ring binder from Staples.com, or a single song from iTunes or a pair of jeans from Target.com, and your miles are active for another year to 18 months. Easy! Check out our handy article on preserving miles with online shopping.

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