Here's my story,
I belong to 3 Credit Unions.
1. Located out of state, I auto deposit my pension. I have a VISA debit card. Withdraw funds @ $500 daily limit from CU 2.
2. Located locally, short drive. I auto deposit my SS. I have a VISA debit card. Withdraw remaining funds at drive up.
3. Located locally, shorter drive. I make all my cash deposits into 2 MM accounts (emergency/long term). NO debit CARD!
I keep no more than $50 in 1 & 2 to avoid OD's. I pay all Utilities/Rent/etc from CU 2.
If I want to purchase something online or locally I use the 24 hour rule & if I still want it I deposit enough to cover the purchase into CU 2 and use my debit card. I remove my debit card number from Amazon and any others I've used.
I have opted out and require my CU's to deny any purchases that may OD my accounts.
I pay no fees, never had an OD, I place my debit cards in my fireproof safe when not in use.
I don't have any account on auto pay (Netflix and my auto insurance will accept either an annual or semi-annual payment and waive the processing fees). I pay my property/auto taxes annually. Neither will take a credit card.
I ask for cash or senior discounts everywhere I can and have walked when denied.
I monitor all accounts daily for problems.
I don't fly, travel, stay at motels/hotels at this stage and only travel locally for entertainment. I have a 2005 Mini that we bought new that has just under 24,000 miles on it. My gas expenses never exceed $50 monthly. I used to travel and have visited every state in the union except N Dakota some several times. Our food costs usually never exceed $400 monthly and we do dine out once a week it is never more than $150 monthly after discounts.
I can't see that having a rewards card would benefit me other than giving me something else to monitor.
But the most important thing Jack Reacher never uses credit cards only cash! Cash is untraceable and keeps you off advertisers mailing/target lists.