receipt
save in case they have to return the items send with the return show as proof of purchase show completed payment show from their old computer show new balance show off how much they saved show order show payment show payment for product show proof of purchases show proof of returning items show that he purchased the drink show that he returned it and got a refund show that they purchased the item show the ticket was taken care of show them they got the item show they drank too much that night and don't remember what happened show what they purchase showing they deserve this money sign and record a tip sign for sign verifying the charge signify they paid for their meal tabulate their transactions to give to customer to keep for records track the costs verify purchase write off on taxes write off the purchase come tax time roll it into a ball for your cat wipe off car windshield make streamers use as the tail of a kite to start a fire to write down notes