wall street journal article on keeping your miles

With all the recent changes to mileage programs, where airlines are taking away your miles earlier, its nice to see the increase in articles with advice on how to combat that. Here's a free article from the Wall Street Journal on how to save those miles.

The one thing the reporter didn't mention is that if you have an airline credit card, you can keep your account active by making a charge and earning points through that (at least that's how it works with United).