Great small USO located by Carousel 21 in Terminal 3.  Hours are from 8am to 8pm.\n\nDavid, the volunteer on duty, was very professional, friendly and attentive.\n\nEverything was very clean and organized. Plenty of coffee, he made a fresh pot for me, and a variety of sodas, water and snacks.\n\nReally glad they have a good selection of paperbacks you can take for free. \n\nFree WIFI and computers with internet access.\n\nThere is also a larger one in Terminal 1 and that one is open 24/7. You can take an in-terminal shuttle to get to it.