Mnemonic Device:

• WOOPS FUN

Explanation: To remember the requirements for a Commercial Paper (i.e., Elements of a Negotiable Instrument).

• W = Writing
• O = On demand or at definite time
• O = Order or bearer
• P = Promise or Order to Pay
• S = Signed
• F = Fixed amount of money
• U = Unconditional
• N = No unauthorized undertakings or instructions