It was chilly, but not freezing, so I opted for a drapey dress with tights:

I changed out of my holiday uniform of sweatpants at my Bf's house and somehow the belt for my dress got lost in the shuffle, so the belt you see is actually one of his ties!

I love this dress because the gray charmeuse fabric drapes only on the left side, revealing the black layer underneath. Kind-of like a giant, drapey pocket.

F21 faux-leather jacket (best impulse buy ever), Robert Rodriguez dress, borrowed tie as belt, Nordstrom opaque tights, Belle by Sigerson Morrison ankle booties
How cute is my sister!? (If you like home improvement DIY stuff, check out her blog here).
I love her new skirt (Rachel Pally via Gilt, I believe) and how she styled the pleated, bright skirt with a simple black sweater. If you could only see the snakeskin wedges that are hiding underneath!

Also, I don't know what our deal was, but there was a big problem with making eye contact with the camera....
Anyway, what are your birthday traditions? And do you get dressed-up or just wear a comfy, casual outfit?