This hack is not going to get you a lot of points but is great for keeping accounts active and thus prevents your miles/points from expiring due to inactivity.  I lost 70,000 United points a few years ago by having no activity on my account.  That will never happen again. Some of the points from this hack can be used at points.com to count as a US Airways Grand Slam hit (more about that in a

read more: Travel Hacking - Tip #9 - Audience Rewards