You're right it can be impractical. For me I mostly solved it by 1) giving back the 1, 2 and 5 cent coins I receive as change and 2) withdrawing cash with my gr

You're right it can be impractical. For me I mostly solved it by 1) giving back the 1, 2 and 5 cent coins I receive as change and 2) withdrawing cash with my grocery purchases, which is possible in many stores.