Be all that you can be and buy all that you can buy at the PX (Post Exchange). The Army and Air Force Exchange Service (AAFES) runs more than 3,700 facilities -- including PXs and BXs (Base Exchanges) -- at US Army and Air Force bases in 30-plus countries (including Iraq), all 50 US states, and five US territories. Its presence ranges from tents to shopping centers, including 160 retail stores, 2,100 fast-food outlets (brands like Burger King and Taco Bell), 120 movie theaters, beauty shops, and gas stations. AAFES serves active-duty military personnel, reservists, retirees, and their family members. Although it's a government agency under the DOD, it receives less than 5% of its funding from the department.