I accomplish much more, when I get dressed for work. I am a writer/author of 5 books, hubs, blogs and freelance articles and I am in the process of directing and producing my work in the ministry, therefore, maintaining a professional attire and attitude at all times is optimal.
It depends. If I know I'm going out at some point during the day then I get dressed and work that way. But, if I'm particularly tired I like to stay in my pj's...at least I have this option and nobody cares! I know that we were told that if you dress up as if going to the office your work will be more professional. But if I'm tired and want to stay home, I do better work if I'm comfortable.