Piggy-backing on kate dresser's "whats the proper way..." thread on how to use the women's washroom when out en femme, I have a similar question:
When putting on a skirt, do you zip it up in front first and then rotate it so that the zipper ends up on the side or in the back the way it's supposed to go? Or do you just zip it up in place, with the zipper remaining where it is actually meant to be? My wife seems to do it the later way, whereas I find that the "zip and rotate" method is more convenient. The only negative is that if you are wearing a blouse or other type of top that is tucked inside the skirt, that action pulls it out of place, and you then have to rearrange it and smooth everything down again afterwards.
Also, who besides me absolutely *hates* back zips on dresses - especially form-fitting ones - where you can't pull them halfway up your back to complete the zipping action overhand because they are too tight at that point? Those types of dresses are really designed in such a way that you need someone else to help you zip up, or else you have to design a makeshift tool (in my case, a length of fishing line attached to an open-ended paper clip) that you can hook onto the zipper tab to complete the operation.
Not so great a situation to be in when you have to do the "Superman in a phone booth" quick-change-to-drab routine when somebody who you don't want catching you en femme comes home unexpectedly .