One hack that's trending right now among super-organized grocery shoppers is the use of trolley bags: reusable bags with removable poles that can be used to keep the bags upright in the cart. They allow customers to sort through items while shopping, according to how you want to put them away at home. A cooler bag is included, and this one even has pockets in it for egg cartons and wine bottles.
I brought them to Trader Joe's and at first felt self-conscious bringing in this long bundle that kind of looked like a yoga mat ... but no one stared. (Though when I got to the checkout, the woman said, "Whoa! What are these contraptions?") A couple of times, the poles did make maneuvering in crowded aisles tricky, but overall they didn't get in the way.Read morehere.