Minecraft wiki entry for Beginner%27s_guide, associated text: As you originally encounter them, villagers can sell useful early-game items like iron tools, armor and weapons, but remember that eventually you can mine for your own iron and such. Don't bother buying stone tools unless you're in a desert, and maybe not even then. You can also harvest wheat and vegetables from village farms, but be sure to replant them afterwards, they don't look like much newly planted, but they grow back over time. You can even sell the crops you harvested back to the farmers. You can also harvest any hay bales from the vicinity and craft them back into wheat, and sell the wheat to any farmer you find (or make bread out of it for yourself).