No more $4 lattes. Make coffee at home. From scratch. That’s right, the husband-wife duo behind Portland’s Mr. Green Beans will show you how to go from bean to brew. Sign up for Intro to Coffee Roasting ($20, includes 1 lb. of raw coffee), and learn how a popcorn popper or frying pan is all you need to bring a batch to “first crack”—and fill your kitchen with the smoky scent of fresh roast. Bonus: Green fair-trade beans are about half the price of the boutique roasted stuff.