Thanks. Gwern's piece was a huge influence on me finally getting around to using spaced repetition. Also influential: various people on LW, including you, but a particular shout-out to a couple lukeprog posts that, while not directly relevant to my hardware, made me realize how quickly I could take the first step.
Now I am better at doing arithmetic in my head and I know my immediate family's birthdays! (And more.)
I have made some significant progress in organizing myself with org-mode (basically a really well thought out emacs outliner) - consider this a plug :).
Now I think I am ready to bite the bullet and automate another part of my mental apparatus, memorization. I'd like to hear other people's experiences with SRS - spaced repetition - (negative, too), what software they use, what do they use it for, how much time they spend. I expect these to vary, so stating your reasons is worth an extra upvote (and thanks ahead)
ETA: When do you decide something is worth memorizing vs. putting it into a searchable database?