What life hacks I can apply to avoid shortage of toilet paper to avoid surprises?
In other words, how to determine when toilet paper is running low?
Maybe it sounds useless, but imagine if you're living in the big house with big family and many bathrooms, so you need some solution to inform you which toilet is run out of the toilet paper to avoid additional headache.
If there was some perfect way or invention for detecting shortage of the toilet paper, I'm sure it can help over 150k hotels (or around 20 million toilets) around the world. And in the perfect world it can be simplified to the receptionist who could see the red lights (indicating the shortage) and send the house keepers, before the guest would even realise.