Ianto is generally a thrifty shopper. When needs must, Ianto is a very thrifty shopper, and at the moment, needs must. The currency had been easy enough to comprehend, and he knew well that 20 marks would only last him a week if he wasn't careful. And so, on the hunt for groceries for an empty kitchen, Ianto had set himself to bargaining fiercely with every stall proprietor he'd encountered.

Not a half hour on, he's already loaded with two bags of groceries and haggling enthusiastically with a man over a block of cheese. He still has more than 17 marks left.