The closest grocery store is out of my favorite brand of tea. Yes, I know of two other stores that have it, but they are farther away and I'd prefer the one I can walk to.
Also, the same store is out of Lady Jane the cat's favorite brand, style, and flavor of canned cat food. Yes, there are other flavors and the dry kibble, but she really only likes pate style Friskies that includes some sort of fish. Our other two cats will eat anything we put in front of them. So, having one rather picky cat seems to be quite a first world problem!