GW Rule #7

Put not off your cloths in the presence of others nor go out your chamber half dressed.

PEEVES

Got a bathrobe?

MADAMA

A little modesty goes a long long way.

SANDRA

I think what George is saying is to be fully dressed before going out in public or as a guest.  Think about how you dress when going on errands, to public events, and to the airport.  Always dressing only for personal comfort means nothing is ever a special event and it’s how you’re presenting yourself to the world.  It also sets up how the world will respond to you.