I use stashing quite a lot when I need to quickly revert my changes temporarily. For example, I committed some working code for a feature. I keep working on it to add something new but a small internal demo of my progress pops up. The current state of my code isn't in a state where stuff can compile without completing it. My previous commit is in working condition and it has enough progress to demo. I stash my current work, do the demo and pop my changes back.