Know the opening hours of the establishments you want to visit. They may vary across the country as some owners practice siesta at noon and some are closed on Sundays.
With the issuance of ATM withdrawal caps and the locals having difficulty in accessing banks, the number of establishments accepting credit and debit cards has decreased. It’s best to have cash on hand at all times.
Help keep local business owners and workers employed by choosing local, whenever possible. Book flights through Greece’s flagship airline Aegean Air, get a locally owned BNB accommodation, and shop for souvenirs at small, independent handicraft stores. These little ways of injecting liquidity to the country’s economy will go a long way in their road to recovery.