The book says,
If there's a grocery store in your neighborhood or a weekend farmer's market, gather together canvas bags or heavy-duty utility bags and head out of a brisk walk to do your grocery shopping.
Since you'll be carrying bags of groceries back home afterwards, you'll want to be sure you can carry what you purchase, in other words, buy only what you need that will fit into a couple of bags.
Walking while carrying groceries means you'll be burning a lot more calories than you would driving your car to the store. Plus, it's better for the environment. Now, that's something to feel good about.
Just For Today: Now that the weather is warming up I am taking more walks.
From the book: Live Happy