I love the convenience of Instacart, but their markups are really substantial. I received a store receipt with my order. I was charged $408 by Instacart (not including the tip for the shopper) for $319 of stuff from Costco (based on the store receipt-- I paid damn near $100 for this delivery). Gasp. Oh well, lesson learned-- time to get my lazy butt out there and do my own shopping.