I guess some of us dress 'in themes' from time to time? For me, I love to sit and think "I'll dress as a flapper today" or "I'll dress as a gorgeous 1940s starlet". I love the character / fantasy aspect to it all, picking out the dress and creating an outfit to match the character.
My latest character is "Naughty lady at a friend's wedding", which I did twice this week (in two different outfits). I guess I have a thing about always wanting to see / meet someone like this at a wedding someplace.
One outfit was a pink chiffon dress, nude nylons (with cream lingerie), cream high heels and matching jewellery. The other outfit was a black satin full-length gown, black nylons (and matching lingerie), black 5" high heel sandals, cream faux-fur stole, with a long gold cigarette holder (I don't smoke, but I very much like the fake cigarettes as part of the image). Both times, I wore a long blonde wig and had a sexy fascinator in my hair as part of the outfit.
Perhaps it's just me, I have a vivid imagination!