Yeah, knowing neighbors is helpful most times, we have a few neighbors, 4 within a mile, unfortunately most I would not count on to be helpful in any but the most dire circumstance and if they were as desperate you would not hear from them, or worse they come for help from you when you not able to meet needs. But we are all pretty self sufficient and self contained, though its interesting we were one of the 1st to have a generator despite having tornadoes come through year before we ever moved here.
Anyway, yes water consumption for bathing and toilet ends up being more than for food and drink. Water source is crucial, stored water is a precious commodity not be used but for most pressing neccesity. We have a well, and have went without power for a few days at times, and even if rare that is a PITA, but then I have cattle watering from the well too. When our power goes out that is the most pressing issue, getting the well back to running. Amazing how much fuel you go through keeping a genny going for days. We try to keep 100 gals of gas on hand for it. Been toying with a diesel gen, but that may be problematical in the cold temps. Though I can only think of one time in 30 years we had the power out for more than a few hours when it was really cold, most times it's summer and spring from tornadoes or wind damage effecting the grid.
Either way I am addicted to lights, heat/ cool and internet and try to keep that indulged as much as possible.

Most of us do seem to come together to get snow blocked roads open in our respective areas, since we all have cattle on pastures away from the house.
Bottom line is be self sufficient, don't be a burden, nor a source of convenience for others, because people will take advantage no matter how nice they are when times are easy.