Conference Style Guide: What kind of Handbag to bring to a Conference

Hi loves!
Since I have been to so many conferences this past year (and still on planning on going to a few more before I graduate), I have become experienced with what kinds of bags work or don't work for carrying your things at conferences without sacrificing style!
I am coorganizing a symposium at the ASBMB 2016 Meeting in San Diego in April, and hopefully attending another conference or two by the summer - so there are a lot of opportunities to network but so many opportunities to be stylish as well!

What do you usually carry with you at a conference?

Casual Friday Work Outfit

So last Friday I decided to get a little dressed up for work since I have finally received my Forever 21 package with a lot of cute stuff that I got on sale! So excited! Everything is so cute!
I wore sandals on my walk to work but then changed to some comfy sneakers (we have to wear closed toed shoes...).