I have equipped each vehicle with a collapsible toilet and other supporting supplies and the house has a portapotty I keep for the dry hunting camps.

For those folks who live in a urban or suburban area and have lost access to large quantities of water, out in the street you have two sewer systems. One is for storm runoff and the other is for waste. Collect your waste, pull the waste sewer manhole cover and deposit therein. Most manhole covers are stamped "SEWER." Just don't place the waste in the storm runoff sewer. It's a federal offense. You don't want to go to prison for sh_t!