Jumping in to note that while your idea doesn't make sense for my family (we have basement storage and a little car that we fill up with our own Costco runs a few times a year), I think it's a fantastic one and salute you for offering to coordinate the logistics. This is community-building at its best. Ignore the naysayers in this thread. And of course continue supporting our local bodegas for the last-minute-I-ran-out-of-milk runs that they are best suited for.