My kids are big enough that I no longer ride them on the back of my bike, and I can't remember when I last wore a skirt and that's not just a memory problem, either. But I do commute on a bicycle, shine or rain. For rain I wear a rain parka. For heavy rain I wear a rain parka plus rain pants and overshoes.
The parka is long enough that it used to get caught in the rear spokes, which tended to mess it up.
Bicycle skirt guards are sort of under-represented on Instructables. 1lenore has a good one using tulle, which seems to be a type of fabric. I wanted something a bit sturdier.
There is now a YouTube video that is sort of a survey of Japanese skirt guard designs. Full disclosure: I did the video, and it's based on photos I took during my recent Japan trip, which came AFTER doing this instructable. If I redo my skirt guards, I think I may go smaller.
Step 1: Tools & Materials
side cutters (nippers)
metal snips (to cut the netting)
Step 2: Quick Run Through
I chose to have the netting ride outside the mud guard and its stays, but inside the stays for the rear luggage rack. I did not want the netting rubbing on the rear wheel or interfering with the brakes.
One thing I might point out is selecting the places for attachment points. You want the zip ties to pull the netting tight when they are snugged up, so choose attachment points accordingly.