Michael,

I have a tickler spreadsheet to remember dates and hours for the plane and
for me. Includes due dates or hours, as appropriate, for:

Annual
ELT Battery
Transponder
Altimeter
Engine
Propeller
Oil Change
Insurance Payment
Medical
IFR Currency
Night Currency
BFR

Anyone have any other items?

Warning: This could be considered spam, so ignore if you're sensitive.

Check out "Expirations" on http://www.hiltonsoftware.com - useful to carry
around with you in your flightbag.

Disclaimer: Should be kinda obvious.

Hilton