An item I've been using to eliminate the need to carry toilet paper in and pack it out is the Kula cloth. It's a reusable antimicrobial pee cloth. https://kulacloth.com/pages/faqs
I've been using it for day outings and it doesn't stink. I'll see how it goes on an upcoming 4 day outing. Some of my girl friends think it's gross but I don't!