What is an example of a space spin off?

By "space spin-off," I assume that you mean something along the lines of "stuff we use here that we might not have without space programs." There are many such things. The one that always pops to my mind is the powdered, orange-flavored beverage (when mixed with water) "Tang." More importantly, given that rockets don't grow on trees, you can thank the space program for national defense and the satellites that allow you to place a call from anywhere to anywhere. Other than things like that, and allowing you to know a great deal about the universe that you live in, space programs are a waste of time and money.