Tempfisch
My first Chief Pilot taught me about TEMPFISCH and I've never looked back (after confirming that it accomplishes everything in a particular aeroplane's flight manual, of course).
Before Takeoff checks:
TEMPFISCH
Trims
Engine
Mixture
Pitch
Fuel/Flaps
Instruments
Switches
Circuit Breakers
Hatches and Harnesses.
Or and I think it's important to have Before Landing Checks rather than Downwind Checks (very helpful for straight in approaches).
FRQ CB