An interesting example in this discussion: Why do a lot of fast-food restaurants use disposable tableware and coffee shops disposable cups? Disposable cups don't make sense if it is impossible to make disposable cups that cost nigh to nothing. If you want to take coffee on the road, just stop at a restaurant, or take a thermos can from home. There is just no need for anyone to have disposable cups, that's just wasteful.
Once these cups became a possibility, however, the use-case of a coffee to go became reality. And with some interesting changes bubbling through society to boot, I think. Compare train stations of a century ago with train stations of today, for example. Or canteens in many a factory with those of 50 years ago. Or your office: where has the coffee lady gone?