Hey there helpful folks. I read a lot about credit card maximization and happily enjoy playing the game, but I realized there was something I didn't know. People often refer to the BofA Alaska Card or the Barclays US Airways card as "churnable," meaning you can get the same bonus multiple times. I get that, but my question is this -- do you cancel the card, wait a bit, and then reapply, or do you simply apply even though you already have one and then have two World Mastercards at the same time? Thanks for the help!