At home, I keep a mug next to the toilet to wash with water: right hand to pour, left hand to wash vigorously, like any good Hindu, atheist or not. No shit streaks on the sheets, which is an old meme in American dating, going back as far as Lisa Althers' Kinflicks. Fewer UTIs too. Of course I wash my hands with soap after, which 50–75% of American men seem not to do after using just paper, hence the e coli on doorknobs.
Elsewhere, I use a big wad of wet toilet paper, between wipes with dry tp.