Department of Defense officials warn servicemembers stationed overseas not to include cost of living allowances in their monthly budgets because COLA rates change on a bi-weekly basis. A page devoted to the overseas COLA on the Defense Travel Management Office's Web site, www.defensetravel.dod.mil/Sections/COLA.cfm, includes a full explanation of the allowance and links to a COLA communications toolkit and a COLA calculator. (Air Force graphic art by Staff Sgt. Jason Lake)