PMSL at some of the replies! I agree with everyone else. Looks a bit desperate to me tbh. The men would be embarrassed, the women would hate you and you'd never be taken seriously again
I actually quite like the one posted by ruddynoooraaaghh above (even though it's from M&S!) - much more subtle.
I don't get why you'd actually want a 2-in-1 dress like that though - I for one can't wear my tops more than a day or two if I'm lucky before they smell Surely a dress like that isn't made for washing every day? I'd definitely go for a pencil skirt, belt and shirts instead!