My daughter asked me why I get dressed everyday since I work from home. Astute question. Initially, I told her that I simply dressed for the day when I bathed - and I do bathe. I also admitted that sometimes I have to leave the house, albeit rarely. But after thinking about it for a bit, I told her of the lessons I learned first in the military, and later, at a corporate retreat. In short, psychosomatic triggers of professionalism.
In the military, when answering the phone, we were encouraged to stand at attention when talking with a superior, the idea being transmission of military bearing even when not visible, and it really does work. Firstly, your diaphragm is at the ready which certainly can come through in your voice, and secondly our behavior is influenced by our posture - something I've mentioned off topic - and standing at attention is surely the most respectful stance in the armed service, it would be nigh impossible not to exude military bearing on the phone.
At a corporate retreat in the swamps of Houston many years later we were encouraged to "smile" on the phone when talking with customers as a take on something else I've used to great advantage over the years. Presentation.
I told my daughter that just maybe, I dressed everyday to trick myself into being at my most productive - something which may prove to be more difficult to come by were I instead lounging in my bathrobe.