Capital One says Discover is accepted at 99% of U.S. merchants. The last slice of non-acceptance still messes up spending.

A prepaid debit card can be a useful financial tool that allows you to pay for things with a card without using credit or a bank account. Prepaid debit cards are easy to get because you don’t need to ...

Debit cards feel safe and familiar, but using them as your primary spending tool quietly shifts risk from banks onto you.