A great tool for reducing the time and effort required to prepare a garden bed; just run it back and forth over the area you want to cultivate, and you're done. It has three sets of intersecting tines that penetrate the soil easily as they roll over the surface. With a scissor-like action, the barbed tines break up and separate the soil, aerating it while also uprooting weeds. Each of the three sets of tines is detachable, so you can make a narrow cultivator head for use between plants, or remove the middle set to straddle a row. Bonus: there is a second handle into which one of the heads can be directly inserted, to use the tool by hand.