From Media Matters...
Obama was the primary sponsor of 152 bills and resolutions introduced in the last Congress. These included bills to create a federal standard for renewable diesel fuel (S.1426), to improve benefits and services for members of the armed forces and veterans (S.3988), and to direct the Nuclear Regulatory Commission to establish guidelines for tracking spent fuel rods (S.1194).
Obama has also introduced a number of bills in the 110th Congress, which convened on January 4. Among the bills Obama has recently introduced, one would "improve benefits and services for members of the Armed Forces, veterans of the Global War on Terrorism, and other veterans." Obama introduced another bill "[t]o promote the national security and stability of the economy of the United States by reducing the dependence of the United States on oil through the rise of alternative fuels and new technology."
If you want more, I can list more... however it would be a very long post.