My sewing machine and iron are on opposite sides of the house, so that gets me moving. It feels so good to get up and walk to the ironing board and back.
As for walking in the parking lot, I do that all the time. I get to the store and realize I forgot my coffee cup. They have coffee in the store, so I can't miss that. They I get back to the store and realize I forgot my grocery bag. I always try to bring my own (keep plastics out of the landfills), and besides, they give me a nickle if I bring my own. Can't miss that. It all keeps me fit.