In Europe I go to a supermarket, and if something has a 1€ price tag, I only need a 1€ coin. Every price includes VAT,unless the seller is B2B, since companies don't pay VAT. And in those cases, prices must indicate N€+VAT.
And the tips, that stupid model of calculating the percentage and stuff is new, copied from the US. At least in Spain it's common not to tip, or at most round to the next euro and "keep the change"