if it's an overspending issue you could always try a charge card where you have to pay off the balance every month. the benefit is that they usually have comparable rewards and still act as a firewall for your checking account. if it's more of a "just can't remember to pay on time" issue, then it won't really help.

you could also setup autopay against your checking account. in theory, it shouldn't be any harder to ensure you don't overdraft one time at the end of the month if you are already making sure you don't overdraft for each purchase, but everyone has their own weird hangups, so I'm not judging.