Have you used an upside-down tomato planter? I moved last year and I don't have as much space for a garden as I used to have, so I am considering getting a few upside-down tomato planters. If you have used them, please share your experience in the comments!
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.