Duck Donuts cash only policy is making a comeback, and your wallet could take a direct hit if you show up without a card. After a brief flirtation with plastic, many locations are dropping credit and debit payments, forcing customers back to the ATM. The hidden cost? Those out-of-network ATM fees, plus the risk of spending more cash than you planned. If you’re grabbing a morning coffee and a donut, that switch could add up to a hidden $5 surcharge on a simple $4 order. Before you aim for that maple bacon glazed treat, check your local shop’s payment policy—or risk watching your spare change disappear faster than the fresh cinnamon sugar.