You’ve probably heard that few things in life are certain except death and taxes, but we’d like to add something else to the list: cleaning up in the bathroom. So, since we have to do it, what’s the best technique? The preferred method of wiping “is not wiping,” nationally renowned anal surgeon Dr. Evan Goldstein told us — Raj Punjabi and Noah Michelson, co-hosts of HuffPost’s “Am I Doing It Wrong?” podcast — when we chatted with him. “When you’re looking at someone’s [anus], to the left and