Laundry is a $100 billion business. It can also be a real time suck, what with all the washing, drying, and folding. Detergent company Tide has found great success with its Pods that let you pop detergent right into a washing machine without having to measure and pour liquid or powder. Now, the next evolution is an exhaustively engineered single-use detergent called Tide Evo Tiles—a dry, fibery, single-use tile that can dissolve in cold water. It looks a lot less tasty than the bright, colorful Tide Pods, so hopefully, fewer people will try to eat this one. Tide Evo Tiles have been in product development for over a decade. After spending a year in test markets, Tide and its parent company, Procter & Gamble, announced last week that Evo Tiles are now rolling out more broadly across the US. Prices range from $5 to $20 per box, depending on the retailer, with the price roughly 50 cents per tile. “This is really a feat of engineering,” says Marcello Puddu, senior director of research and development …