Our only bills are a mortgage (yes, we did borrow for that) and our utilities.
We try to live within our means and our lack of debt is a nice piece of sunshine in our lives.
We have two cards. The Costco american express - and we just got a three figure check last week for our percentage reward for last year - and our “airline” visa that rewards us with miles.
We hardly ever pay cash any more and pay both off every month. The only time I need cash is when I am buying something off Craigslist.
I wish I had your determination....CC are so easy to use....