Local food swaps have become a thing. What are they? Well, they’re all a little different but the basic idea is that a bunch of people from one community come together to trade homegrown or homemade items. After everyone arrives, time is spent walking around, checking out what everyone brought (and sometimes sampling), and then when it’s time to swap there’s a negotiating frenzy. Typically everyone goes home with a bag (or box) full of goodies, extremely happy about trying some new things. My friends Emily Paster and Vanessa Druckman created the Chicago Food Swap a few years ago; the first one was held in December 2011. I was able…