Quick and simple interdiffs

xjm has a great guide for doing interdiffs using two branches for the original patch and your new changes. I must admit I'm lazier than that, and have a much simpler process for doing interdiffs on patch updates. Of course this only works if you work on one patch at a time. Branches are better when you work on different things and want to keep those things around. With that, here is my simpler interdiff workflow.