Oh boy, one time I did this...
Once as I was working (I had a cleaning business) and my crew did not show up, so I had to do all the work for myself (alone, just me, myself and I), this was a restaurant in a Mall, was outside on a corner, with plenty of windows, so, as I was rushing to get the place cleaned, I slipped in the kitchen after I spray degreaser on the floor, so I was covered in sods and soaked, and many things left to do. So I did the smart thing, stripped my clothes off, wash them, place them by a vent to dry and work butt naked from 1 am to 5 am, running like crazy inside, since the manager and kitchen crew arrive at 5:30 to start prepping. I was so focused on getting the job done, that I completely forgot about the windows, and I saw many people going by and I just waived at them, to me, being nude is so natural that I forgot I was naked the full time, so at 5:15 got my clothes on and finished polishing the brass waiting for the restaurant people. The manager came and was surprised when saw just me inside and he was bemazed of how clean the place was. Good old days!
Nude time in the office can be nice. For me it requires that I'm the only one around and I stay in the upstairs office away from the security cameras. And then I have to stay alert in case the front door downstairs is beeped open. I have precious few seconds to get 'decent' should anyone come in.
In warm weather when the office heats up so getting stuff done nude is a nice way to do it.