I worked for NOLS in the field for 20 years and spent most of my backcountry time without toilet paper. Snow, spruce cones, certain leaves, bundles of soft early pine needles, smooth dry sticks and smooth rocks all have some workability. I always thought that squirrel fur would be the ultimate, but the little buggers are hard to catch with your pants down.

Washing the privates regularly also helps tremendously. Any leftover smears on your butt will turn into diaper rash.

These days I carry TP and wet wipes, pack it in and pack it out. I take three small Ziplocks, one with TP, one with wipes, one for the used goods.

And remember to wash your hands. Fecal-oral contamination is a common cause of intestinal illness in the backcountry and has caused distress to quite a few NOLSies.