From the results of a recent SonicWALL survey
While about 39% of respondents of both sexes said they wear sweats while working from home, 12% of males and 7% of females wear nothing at all.
Men are also less likely to shower:
In matters of cleanliness, the difference between the sexes was more pointed: 44% of women surveyed said they showered on work-at-home days, as opposed to men, who were slightly more likely to shave (33%) than wash (30%).
More here; via Adam Gaffin.