Serious question: we are very soon running out of toilet paper. Because of the panic from the virus, our nearby stores have all been out of toilet papers for a couple of weeks now and we've been unable to restock so far, so it was a golden opportunity for me to bring back up the idea to try out a bidet (SO is reticent but it beats having no toilet paper to wipe with)

My problem is that I don't know how to "hang" the handle when it's not in use. The bathroom is all tile from floor to ceiling and we're tenants so we can't drill to hang an attachment. I've also seen systems that hook over the tank's wall, but our toilet has the tank in the wall (it's a German style toilet for those who know what I mean: tank in the wall and toilet seat hanging from the wall rather than the floor)

I'm also not convinced with the little arms that install under the seat which reaches out when water flows, because I'm very concerned about back splashing on it when using the toilet and being unable to thoroughly clean the arm. This would spray soiled water where we don't want it.

I'm hoping someone in a similar situation figured something out: what system do you use?