So glad this topic came up.  Please don't ever bury toilet paper.  The trails are littered with toilet paper.  And NO ONE wants to see a mound of TP on the trail where people have made a habit of doing their business.  It ruins the beauty and the purpose of getting out of the city.  Just don't be lazy.  If you must use TP, pack it out!  All that being said, I also use a Kula Cloth.  It's infused with silver anti microbial threads on  the absorbent side and waterproof on the other side.  I also have several of them.  One for the "front" and one for the "back".  And they are simple and easy to clean once you get to camp/restroom/home.  They also snap easily onto your pack.