Cashing a customer's check

Q: When a customer comes in to buy quarters to use for laundry and they pay for the quarters with a check, how do we put the check in the computer so the Receipts by Payment Method comes out right to balance the cash drawer?

A: Go into Unbound Transactions (from the Transaction menu), enter a Payment with Check as the payment method, and then enter a Refund with Cash as the payment method.

Note that this method could also be used for exchanging currency, e.g. if you had separate Payment methods for Cash/US and Cash/Canadian.  You could even do it within a person's reservation along with their other transactions.