Got a letter today from discover. Basically said, "We're changing your interest rate to 22.9% + prime." I called to find out what the f*&k, they tell me my interest rate has been 27.99% for the last 4 months, they only changed me from a fixed to variable rate. I rarely use this card, but shame on me for not keeping tabs on these weasels. Thought I'd post this as a warning for everybody else.