Useful "cliche" I picked up many years back on the downwind checks.......
Brakes Off, Undercarriage Down & Welded, etc, etc.....
Helps to remember to include the u/c checks when you move from fixed to retractables.....
or maybe not, since you might just say it and forget.......but sometimes it amuses the pax.
and there's always "thumb in bum and mind in neutral" for those moments when you've been caught napping.....