Originally Posted by
Syzygies
For others concerned about their own miles, the simplest way to keep miles active is to make a trivial use of a few miles: Buy a magazine subscription.
MagsForMiles
Or get a Mileage Plus credit card. The initial bonus plus first year fee waiver will get you through at least five years at essentially no cost, and then just spend $5K a year and that will more than cover the fee after that. The card eliminates expiration of miles.