I think just about everybody else has said the same, but here I go:
-Open a beer (usually some Octoberfest brew this time of year)
-Wash/clean deck, remove embedded gras clippings, etc.
-Run tank until dry
-Change oil
-Remove plug, fill with a bit of oil, pull cord to distribute, repalce plug
-Remove rear wheels, clean self-propel gears/driveshat, lube, re-install wheels
-Store in outdoor shed
-Drink another beer