[NicknamedBob]

"It didn’t occur to DP to find out whether the place has (for example) towels."

Towels are multi-functional emergency supplies. They are substitute: clothing, blankets, pillows, curtains, and packing insulation.

If you're traveling in a vehicle, stuff every corner with extra (large) towels. You won't go wrong.

[Tax-chick]

And a coffeepot. And a vacuum cleaner. And bathroom-cleaning supplies.