Avoid anything with meat or dairy, or diseased plant material (ie if your tomatoes get "wilt" don't put those in the compost 'cause it could spread the disease to your next batch of tomato plants). Meat & dairy attract rodents, from what I understand. Seeds are fine, altho it's possible they'll sprout when you use the compost - but if you run a "hot" compost I think that is supposed to make the seeds sterile. (meaning that you do the compost the non-lazy way

) I remember digging cow manure into my garden one fall, and in the spring I got tons of weeds - more so than usual. I always used composted manure after that, and had no excess weed trouble.
Welcome to the world of composting! Our motto? "Let it ROT!"
