Negotiable instrument
A substitute for cash, is a written document containing the signature of the creator that makes an unconditional promise or order to pay a certain sun of money, either at a specified time or on demand.
UCC
Under common law
Note
Is a promise, by the maker of the note, to pay a payee.
The holder of a demand instrument can?
Demand payment at anytime
Payment is made in 3 ways
Cash, Credit Cards, or Cash Substitute