I’ll go first. After your turn the water off in the shower but before you get out, use your hands to wipe off any standing water on your body. Maybe even give your legs a bit of a shake. This way, you won’t drip nearly as much when you get out, keeping the floor and your towel drier.
Always keep stock of water in an extra overhead tank or atleast an extra lid bucket bathrooms for emergency when tap water ran out. Just make sure to change water every two weeks to prevent bug parties in it.
If you don’t have kettle then have a lot of water bottles especially that can store warm drinking water for long time, to never run short of warm drinking water in winter.