Your sentiment is right, as is your focus on credit cards, but just to be clear: not all debt have higher interests rates than what you can earn. Specifically,

Your sentiment is right, as is your focus on credit cards, but just to be clear: not all debt have higher interests rates than what you can earn. Specifically, student loans (which has has), tend to have very load rates. Also, I once had a mortgage at a stupid low interest rate..also with respect to mortgages, a lot of them have rules about how/when payments can be accelerated (if at all).