I love talking about git workflow, and am happy to spend a half hour diagramming how your repo relates to origin, what branches mean, how pull requests and merges work, and what rebasing does. For people who don't yet grok git (or maybe just distributed source control?), this has proven to be very helpful.
I typically present this information about 2x a year. However, if I had people ask me for this kind of explanation every week, or multiple times a week, it would have a much larger impact on my productivity.