What a great idea, the bartering system works great. Have you signed up for some of the survey sites. I know pinecone research is good for me for at least $10 or $20 a month, plus you get free samples. Memolink is tailored around college students but they don't pay as well. Start Sampling will send you samples. Another idea I came up with is churches in the community. I know our church has a weekly meal and you can either bring a covered dish or make a small donation or if you don't have it, just come, your presence is all they require.