I keep my checking with a bank and I use their credit card. Several years ago I realized that what keeps a person down is debt, it takes a long time for me to figure out things.
When I was employed I had a sign on the desk "owe no man", I believe it comes from the bible.
The reason people work at something they don't like, they owe..........
I am with you on credit cards but I will be boiled in oil before I pay interest on a card.
Since debt is my enemy then getting into business with the enemy is like going to bed with a basket of snakes.........ya takes ya chances.