Methods of payment
This document summarizes various methods of payment including cash, checks, bank transfers, debit/credit cards, and online payments. It discusses the key functions of money as a medium of exchange, unit of account, and store of value. Regarding payment instruments, it describes how checks, bank drafts, direct debits, and wire transfers work. The differences between debit and credit cards are outlined, noting that debit cards deduct funds from your bank account while credit cards provide a line of credit. Finally, it briefly discusses online payment options like PayPal and Bitcoin.