The Caper Cart. | Image: Instacart If you always have trouble finding that specific pasta sauce like I do, there's a smart grocery shopping cart that can map it out for you. Instacart's Caper Cart, which has a touchscreen and payment terminal up front where you'd normally seat your toddler or play Jenga with your produce, now has a new store map system that can help navigate you to products you're looking for, on-sale items, and even send you on fetch quests that can land you savings. And there's ads on them, too.The Caper Carts have been in limited operation in select grocery stores for several years; when you drop in products, the cart automatically tallies them up on the screen (except for specific types of produce) thanks to several cameras, sensors, and a scale... Continue reading...