I just flew last month for the first time since the liquid and gel bans. I was a nervous wreck with what had to go in the bag, what we couldn't take, etc. I even called the FAA once to ask a question. And we were flying out of Atlanta which is the busiest airport in the world.
I shouldn't have panicked at all. I should have listened to my husband that we were fine. Just take the bag out of your carry on, put it into the bin, run the bin(s) through the scanners and you are done. Just note that you will probably have to have ore than one bin if you have a couple of carryons. I had no idea that you even needed a bin!
After you get through security, take your time getting your stuff back together. I was trying to hurry off to the side and the guard told me to just take my time since I wasn't in the way. Relax and enjoy your flight.