Supply Our Soldiers Act of 2005 - Directs the Secretary of Defense to provide for a program under which postal benefits are provided to a member of the Armed Forces who is on active duty and who is either: (1) serving in Iraq or Afghanistan; or (2) hospitalized at a military medical facility as a result of such service. Provides the postal benefits in the form of coupons or other evidence of credit (vouchers) to use for postal-free mailings. Limits: (1) the weight of the mail and parcels authorized for the program; (2) a member to one voucher per month; and (3) the program duration to one year after the date of implementing regulations.
Authorizes appropriations.