I wonder if this method would be helpful on clincher tires?
I have tried it with the zip ties on my motorcycle. After that I eliminated the zip ties. They really just got in the way. I like the two garbage bag approach.
You kinda reckon on the audience for that video when the "instructor" is a guy wearing shorts and rubber gloves who feels it's necessary to show you how to remove the valve core. (eye-roll emoticon goes here)