Present for Wife

After being away on business, Tim thought it would be nice to bring his wife a little gift.
“How about some perfume?” he asked the cosmetics clerk. She showed him a bottle costing $50.00.
“That’s a bit much,” said Tim, so she returned with a smaller bottle for $30.00. “That’s still quite a bit,” Tim complained.
Growing annoyed, the clerk brought out a tiny $15.00 bottle.
“What I mean,” said Tim, “is I’d like to see something really cheap.”
The clerk handed him a mirror.