Beth, you are going to love your Houston experience! If you haven't already, you might want to download the entire show brochure to get an idea of what is going to be available to you. It can be overwhelming when you walk in the door!
Yes! Your IQA nametag will get you into the show every day, and you can use your own nametag holder. Just be sure that the entire nametag is easily visible to the door guards! However, you still should go by the check-in desk and pick up your tote bag! They are really handy and make a great souvenir of the show.
Also, if you haven't read it yet, you will probably be interested in this entire forum topic!