I currently carry a spork and chopsticks so I don't have to use disposable ones. Also for the larger bulk items I buy at the grocery store I don't bother putting them in a plastic bag. (Apples, potatoes, leeks, etc).
I've thought about carrying a cloth napkin, reusing plastic bags for the smaller bulk goods that I buy, and learning how to make the few "processed" foods I eat. (In my case "processed" means things like tofu, soy milk, apple sauce, and nut butter.)
If I was composting I bet I could go months without needing to take the trash out.
Oh wait I forgot–junk mail. I bet that's a significant portion of my trash.