A down economy might be waking the rest of the country up to the importance of savings and DIY, but for farmers working on low margins and high risk it’s business as usual. Although we still live off the income from our 200-family CSA, I developed and now sell the CoolBot, a device that makes a standard window air-conditioner run down to 33 degrees, turning it into a walk-in cooler compressor. We built the “CoolBot” because we couldn’t afford a real walk-in cooler compressor. We couldn’t afford a real walk-in cooler box either, so we built our own there, too. We’ve since helped many other people build their own walk-in boxes as well as getting tips and information back from hundreds more folks that have shared what to do (and sometimes what NOT to do) when building a room for cold storage.