Mostly t-shirt and jeans, unless I am going out for the night (usually with ktspktsp at my side; I dress up because I like feeling sexy next to him, and I certainly don't mind *him* ogling me over dinner
)... but that's more of a mood thing than anything else. Even if I am just going out with girlfriends at night (which happens pretty rarely), I like to dress sexy (e.g. tighter jeans, leather boots, and a sparkly/tighter tank top with some cleavage) because it just makes me feel "in the mood" to socialize, let loose, relax, not feel like the dorky graduate student that I usually am during the day.
EDIT: I forgot to add that recently, while working out, I've enjoyed having slightly more flattering clothes to wear. (For as long as I can remember, I've been wearing baggy soccer shorts for boys and a very loose sleeveless top, but have switched to fitted shorts and a tighter sleeveless Adidas top.) Again, I think it's a mood thing, especially since all the overflowing testosterone in the gym used to intimidate me. I find that wearing something that accentuates my muscles helps me feel more powerful and motivated in the gym, especially when running and lifting weights (when I am surrounded by sweaty, grunting men who all seem very insecure about their bodies).
Of course, the effect is somehwat diminished when I forget to shave my legs, which happens on a weekly basis.
