No power as in from the grid? Fire up my house generator so we can at the very least have water (from a well), heat (in winter), and preserve the goods in the refrigerator (was once worth a fortune!). Its powerful enough to do everything else though, as if we were on-grid..

A day without power? Not in my house for the necessities stated above. While tent camping, sure, but I mean I still bring my phone and a battery pack to charge it + lights and stuff.. so hmm