My Mom grew up in Ireland during the 1930s, when there wasn't really toilet paper or paper towels. They cut up newspaper and used that, which is something people have used for hundreds of years (Shakespeare refers to a piece of bad writing in one of his plays as "only fit for bum fodder."). Just don't flush it down the toilet because it can clog the pipes.
You can use a mix of drinking alcohol and a bit of water as a hand sanitizer. Dishwater detergent also works. The real trick is the time spread scrubbing.
I mean I have a shower, and a bidet. I would survive. I just wouldn't necessarily love it. And definitely nothing down the toilet but tp. We have a septic tank and i'm very mindful.
I have tons of hand soap, shampoo, conditioner, body lotion, perfume, and enough makeup to last for 10 years. And glitter. And sequins.