I've heard (in some places) in Mexico you can have groceries delivered to you from Walmart[0]. I was told about it, but after finding that article it seems a Walmart owned business, mind you this article is from 2014, and I heard about this in 2007 ~ 2008 from someone who was living in Mexico at the time. It is very interesting to see businesses other than food places deliver goods.

http://www.theretailingmanagement.com/?p=317

Yeah, delivery for the packaged stuff and walking/biking for the fresh groceries is nice. A problem with delivery, besides price, is that some stores still require a large time window. Being stuck at home from 9h-13h every Saturday would suck.