Every single day of my life.
I do this, too. One time last semester, I got up for class a bit earlier than usual. Since I had some time, I decided the best thing for me to do would be to lay in my bed, in my towel, and read for a bit. It was quite relaxing. So relaxing, that I ended up falling asleep and missing my classes.
I’m big on air drying. I get annoyed if I have to get dressed too fast after a shower.
I am terribly British, and will only wear clothes if the lack of them might distress others.
I love roaming around in nothing but panties, but I don’t get to do it very often since I still live at home w/my parents. I just do it if there’s no one else at home. I wanna move out just so I can roam free 
Also, lounging around my boyfriend’s house while wearing one of his wifebeaters and my boyshorts is one of the best feelings ever 
Usually on Sundays I will lounge around in a towel for several hours after getting out of the shower. The rest of the time I usually wear only boxer shorts. Also I rarely turn on my heater or air conditioner, unless someone comes over, so in the winter I wear sweats.