Many Asians, as I understand it, like to use their fingers. The French like bidets. Boy Scouts use Poison Ivy leaves, and Grandpa grew up using pages from the Sears Roebuck catalog. But the civilized world, despite Cheryl Crowe's suggestions, prefers nice, soft toilet paper made from friendly trees.
What did people use in the past? Vast Right Wing Conspiracy has the fascinating facts for you.