Save money or do not buy so much toilet paper.
The squat toilet and the concept that you use a sprayer or small ladle,
or dipper of water to clean yourself will completely remove the need for
toilet paper, but this is not a very good solution.
I do recommend you use the sprayer or dip, splash or whatever your person
technique is when you are in your personal room and can walk around naked,
with clothes this option just diminishes as you cannot really spray or
splash, and if you really wish you can shower afterwards.