I always talk with the photographer way in advance before I go to a shoot and just see what type of stuff he's wanting to do... what he's looking for a so forth.. because my portfolio is so diverse and now when I shoot, it's really just up to what the photographer wants... I'm very select now with who I shoot with b/c of my portfolio being as diverse as it is and with the top photographers I've worked with, it's kinda hard to top what I have... but there's always a space to improve, add or so forth...
So now, I just leave it up to the photographer... b/c in the end.... I know I'll end up with something I'll be able to use... that's how I limit my supply of clothing that I bring with me... I'll bring what he's wanting me to and then maybe just a couple other articles of clothing that I thought would be interesting.
As far as what I bring them in... lol I travel everywhere with my suitcase... shoes, straightener, curling iron, clothes, makeup everything
That way I'm not having to go back and forth more than once to my car and that way it doesn't feel as ackward when you're entering and leaving the studio.