http://www.greenfeet.net/newsletter/eatorganic.shtml
excerpt..
So why don't more people eat organic? Most people feel it's too expensive. It costs an average of 30% more for organic goods than for conventionally grown products and not everyone has that extra money to spare. But by employing smart shopping tactics, you can save money and eat healthier. Here are a few tips and resources that we have found to help make eating organic a healthy and affordable choice.
Evaluate the food products that you consume every day. Whether it's produce, milk, cereal or bread, decide which products makeup the core of your diet. The next time you're in the supermarket, check out the natural foods section or visit your local natural foods market. You may be pleasantly surprised to find that organic milk does not cost significantly more than your normal brand and considering the huge health benefits (no hormones, pesticides or antibiotics), this is a great place to start - especially if you have children.
Prioritize the items that you feel would benefit you and your family the most. Dairy products, produce and grains may take precedence while you may decide that it is not necessary to spend the extra money on a bottle of organic ketchup. This is where you can make choices.
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and then this one 17 tips for buying organic
ie- shop at farmers market
http://www.bankrate.com/brm/news/cheap/20040901a1.asp
these are good too
http://www.eatwellguide.org/index.cfm
http://www.organicconsumers.org