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.
Get a cheap battery tester. I’ve pulled two batteries from a device and had one completely dead while the other still has a full charge. I keep all my good used batteries in an old clear vhs case.