Loc: Gateway to Columbia Gorge
I used to do this, but in an ordinary plastic bag, not Ziplock.
In more recent years, I've carried paper towel squares instead. Far more absorbent, tougher (no unexpected holes!), and can be wet for further cleaning. I've found that they clean better, and the total weight I have to carry is a bit less. Obviously, paper towels are slower to disintegrate, but I pack out my TP either way.
May your trails be crooked, winding, lonesome, dangerous, leading to the most amazing view--E. Abbey
Good idea but I pretty much got away from TP years ago. I bring a micro fiber cloth square, and make a "trail bidet" from a drinking water bottle with a cut in the cap, that aims "up". Much easier, lighter, cleaner, nothing to bury or haul out. The water bottle crushes to nothing until needed again. A tiny eye dropper bottle of dawn liquid or Bronner's takes care of the hands and the cloth is rarely required. This is the "third world" way.
I’ll be the contrarian here - I really like this idea.
Of course, here in the Eastern US, outhouses are present at most designated campsites, and the soil provides for fairly quick decomposition so toilet paper rarely becomes an issue, at least the places I go.