There are numerous times I use a dress as a shirt. I like the top of it, or the collar, or buttons so then I just tuck the rest into my skirt! It gives me more layering options because I am all about multiple uses for clothing.
Vest: Thrifted. Silk top: thrifted (actually a dress). Belt: thrifted. Skirt: thrifted. Fishnets: mother's. Heels: Target.