There really isn't old money
How long does money last? That depends on the denomination of the note. A $1 bill lasts 5.8 years; $5 bill, 5.5 years; $10 bill, 4.5 years; $20 bill, 7.9 years; $50 bill, 8.5 years; and $100 bill, 15 years. Bills that get worn out from everyday use are taken out of...