Hi Ward:
Good planning for Plan-B. Sometimes what you'd want to do for Plan-B is not accessible, so do you need a Plan'C? That's where a back up plan becomes invaluable. Some activity that requires little to no preparation, can be immediately implemmented, is related to the basic lesson or profession, and is fairy low tech (in the event of a power failure or loss/absence of electronic resources).
Regards, Barry
