Free to military members!
I donate to the USO because I'm familiar with the good work they do. I also take advantage of their lounges in airports whenever I can. I used to be reluctant to spend time in the USO but I've discovered it's a great alternative to the Airline Clubs and Lounges. There was food, and a large screen television and comfy recliners. One could easily fall asleep and many do.
More military members should take advantage of the services of the USO. The volunteers are friendly and welcoming. Also I encourage everyone to donate if they can. A lot of so called charities don't do what they say, but as with this location, the USO really delivers on their promise to support servicemembers.