No hot water? She never showers?
You get used to it.
Metal pans! A tea kettle? Put kettle on stove, bring to a boil, pour hot water in pan. Add cold water to desired temperature. Take washcloth and a little soap. Wash up.
There was a time not so long ago when that was all we had. Then once every week or two, we had a large galvanized tub where we enlarged on the smaller metal pan/tea kettle method.
Yep. Times wuz hard.