I can't believe I'm contributing post #77 to a thread that is about as off topic as it can get for an electric bike forum!
In our case, the toilet is close to the shower so I made this simple "wand" attachment from a few parts I got at Home Depot:
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It is a chrome plated copper toilet supply line bent in a "U", connected to a shower head shut off valve and a long flexible shower head hose. A quick connect attachment makes it easy to switch between the wand and the shower head. It stores on the shower rod when not in use.
I don't mind cold water but my wife uses it before or after a shower when the water is already warm. The wand is self cleaning but it gets disinfected daily when the shower is sprayed with an alcohol / peroxide based shower cleaner.
Cheap & simple and it's been working well for almost 10 years now. Who knows how many rolls of TP we've saved. It sure came in handy when you couldn't find TP on store shelves during the early stages of the pandemic.