I was reading some story on the first use of shopping carts. Seems back in the old days you would call ahead with your order and the store would fill it and have it ready for you when you came in.
The first store to use carts had to give the folks a big discount in order for the customers to want to put in the effort to walk the store and find the products.
Sending in our order and having it brought out to the car is happening now.
I like it.