And here's my touring setup from an overnight tour last summer.
The contents of the bags are - Toothbrush, toothpaste, roll-on sunscreen, contact lens, folding comb/hairbrush thing, tyre levers and innertube, multitool, patch, tyreboot, emery cloth, and a lock with a rear light attached. The big black thing is probably a pair of shorts and maybe a T-shirt, I can't quite tell. I also must have had a phone charger knocking about.
For all of it looking pretty minimal, I could travel like that for maybe a week. You do get to a point where doing laundry every day gets a bit wearing, and I'd swap out the contact lens for a pair of glasses and maybe a disposable razor, but as long as you don't go too far past socially acceptable levels of personal hygiene it's all good.