Set your bills to auto-pay from your bank account. Then you can treat your credit card like it's effectively a debit card and make your everyday purchases with it in order to collect the rewards. (Though, I think I remember reading that you'll still build your credit rating holding a credit card you don't use.)
Previous Open Thread: http://lesswrong.com/r/discussion/lw/k94/open_thread_may_19_25_2014/
You know the drill - If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one.
3. Open Threads should start on Monday, and end on Sunday.
4. Open Threads should be posted in Discussion, and not Main.