When you stop borrowing money and don’t have any open accounts, your credit score will slowly disappear.
By the way, did you know that you can still qualify for a mortgage,
even with no credit score? There are still mortgage companies out there
that will do manual underwriting. It takes a little extra effort, but in
my mind that’s a small price to pay.
I’ve never met a millionaire who prospered thanks to credit cards and their gimmicks.