When I was working 9am - 5pm in an office, I would jump right in the shower when I got home and change into my pjs unless I was going out and then I would shower and change into regular clothes... When I was working at S&S depending on the time I got home, I would sometimes stay in my work shirt for a while... I guess it depended on my mood...
Usually it's about three minutes between the time I'm in the door and into my pajamas. I figure it keeps the work clothes nicer as Gandalf and Samwise both like to kneed on me.