Bob suggested to his wife that a good way to save money would be to put £1.00 in the money box every time they made love.
A year went by and Bob decided to empty the money box and see how much money had been saved. He couldn't believe his eyes when he found not only £1.00 coins but lots of £5.00, £10.00 and £20.00 notes as well.
"How come we've got all these notes?" he asked his wife in amazement. "Well," she retorted. "Not everyone's as stingy as you,"