Oh yeah, Mark Twain. One of the advantages of working from home. Generally, I'm so keen to get to my desk when I get back from the yard (for keen, read wracked with guilt!) that I don't even change out of my riding clothes.
Caroline Coxon, power dressing:
I can assure you, however, that my soul is Very Tidy.
And - potential clients everywhere - my attire in no way affects the quality of my writing...
I scrub up pretty well!