Credit cards are the devil

I hate credit cards and the companies behind them. I opened an American Express account a month ago and did a balance transfer in at 0% for 12 months. All I had to do was spend $100 on their card within 90 days. No problem! Done! Next thing I know, a month later I get an e-statement saying payment is due... IN 5 BUSINESS DAYS. Oops! Didn't get payment there fast enough! Darn! Rate went to 15% overnight. Screw them. I am pulling out every dollar I owe on it out of savings and paying it off next week. They will never see another dime of interest or fees from me. In fact, I plan to fully abuse the card priveleges by using it then paying it off in full every month and getting the cash back on purchases.

To top it off, on this very same day, a new credit card with a $10,000 limit shows up out of the clear blue sky from another company. Who? What? Come to find out some store branded card I had like five frickin years ago dumped my info to this company who then jacked up the rate and available credit and issued a new card without even asking if I wanted it. It said "you can dispose of your Marta card!". What the HELL is a Marta card?!?! I told them they can cancel the store card AND this new card and asked for proof of cancellation in writing. I don't care what closing accounts does to my credit score... I hate having open accounts that I haven't touched in 5-10 years (long forgotten by me) floating around on my credit report.