Before you have to do it for real, learn how to jump start from a LandCruiser. No prop swing required.
If a dirty great wasp/bee/insect/spider gets in the cabin, don't get excited and try to brush it through the storm window. Open as many orifices the plane offers, and let them do it them selves. Otherwise they will get as exited and toey as you.
Be prepared to smell stuff that you will never forget. Then you will remember that living beings can really smell that dead.
Just as important as covering the pitot, don't forget to take it off. Especially if you use the pitot heat.
Always keep the grid MORA/LSALT in mind if you get caught out.
Flys. Lots and lots of flys.