I haven't flown since 11/30/2001 and have no immediate plans to do so. Of course, this means that I have a mess of frequent flyer miles on United, American, and Delta from my days as an itinerant technology drone for IBM. I'd heard about a program to donate miles for use for returning or on-leave US troops to use but hadn't found any information about it until tonight: Operation Hero Miles - Official Website. Nothing fancy as site design or technology goes, but it does provide links or forms to donate miles for the airlines who are participating. So I plan to knock a chunk off my United and American accounts (keeping enough to fly if I absolutely need to).