FAA allows you to bring on board with you a few very small liquid containers (up to 100ml, I believe) as long as you put them in a clear Zip-Lock bag. Those of us who will not be needing a lot of moisturizer and hand-sanitizer on board, and who don't like to pay the airlines $5 for drinks that used to be free a couple of years ago, can, in this manner, bring with them a couple of 50ml one-shot vodka bottles, available at most liquor stores for around $1. I mean, what else is there to do in-flight?
I tried it on my last trip - worked like a charm. The security guys even smiled approvingly.