Re: Coin-swallowing machine
"It generally returns the deposited amount in 1 euro coins, or at worst 50c ones."
The same applies to the self-service tills in some shops. Morrisons in particular use a big cup-like thing with a conveyor belt in the bottom but return any overage using the minimum number of coins. Asda and B&Q on the other hand are coins slots so it's a bit less convenient to just dump a pocket full of change in them.
It's certainly cheaper than using those Coinstar machines so long as you're not dropping the entire piggy bank or penny jar in them :-)