In Germany at least, it is common to round up. Probably because we like paying with cash, since it's just less of a hassle if the price is odd. Round up to the

In Germany at least, it is common to round up. Probably because we like paying with cash, since it's just less of a hassle if the price is odd. Round up to the next full Euro, or the next 5/10€ if it's close/you're feeling generous/don't like coins. AFAIK this is a common mode for the other European countries as well.