When Bill and Hillary got married, he told Hillary to never look in he box under their bed, and so she agreed.
A couple of years had gone by and she had never looked in the box, but one day she was vacuuming the house and knocked the box over and when she picked it up she noticed their were three empty beer cans and $342.76 in the box.
She goes to Bill with the box later that evening and asks him about the cans, and he says, "Well, those cans are for every time I lied to you."
Hillary replies, "Then I must ask you what the $342.76 is for?"
"Well, that's for all the cans that I have recycled."