We always used to use newspaper in the loo. I suspect modern newspaper might not be so good - different texture paper. But in a crisis it should do well enough. Lots of paper in a paper.
.........
Interesting to consider how many wartime slogans and terns fit the times. "Is your journey really necessary" , "Careless talk costs lives" (applicable to the fools who gaily pass on rumours about miracle cures and so forth they have come across online), Then, the most appropriate term to use when talking about how long it will last is ¿the duration".   "Make do and Mend", "Coughs and Sneezes Spread Diseases".   

And of course "Keep Calm and Carry On" - which never meant pretending there's nothing wrong, but don't panic and give up, control yourself and do whatever needs diing without fussing. Which is excellent advice.