Toilet paper.. For two reasons, For what its made for, lol... And I use it to mark the blood trail if i don't hear or see the deer drop... I take a 1/4 role and flatten it out and put it in my pack.. I also have a smaller roll in there as a back up, just in case I use up the other one I still have one to wipe with..... You never know when the urge will come up.. lol..