So I was in Mountain View last week, helping the Mozilla Labs team re‐architect Bespin. Toward the end of the week, as we were doing some collaborative coding, I opened a terminal and typed j bespin to bring me straight to my checkout of the Bespin source — and Kevin and Joe simultaneously went, “Wait, what’d you just do?” I realized I’d been using autojump — the cd substitute that guesses what you mean — for over a year, and hadn’t yet pimped it to anyone. Use it! You’ll wonder where it’s been all your life.