We have two bathtubs that we fill for flushing the toilet and washing. We have two 5-gallon water jugs for drinking water and several water bottles.
Be sure to test this, as many tubs will not hold water forever. Mine loses about 50% over night and would not be something to count on for longer than that. I guess it all goes back to test what you use before you need it.
Arrrr! Now I’m going to have to do another dry run with the generator since I changed up some things with it last week.