Beyond that, not hugely. I hit the "man pages" a lot for the libraries but they would never fit on a literal cheat sheet.
It might be useful to have an SQL one. I'm always forgetting syntax. RegX is too complex to summaries and all the summaries are inaccurate (e.g. "This means X unless the following conditions are met then it means the opposite of X, and if other conditions are met then it forms part of Y or nothing at all!")
Revsys put out a nice Django cheatsheet a while back. I don't think it's been updated since 1.5, but I've used it when I'm starting a new Django project for the first time in a while.
I find it helpful for reminding me of things I've used before, but not often enough to remember the exact syntax off the top of my head.
I've never had a day where I coded completely from memory. I don't necessarily use cheat-sheets, but I'll often revisit that same stackoverflow answer several times over the course of a week until it gets lodged in my brain.
Otherwise just googling a quick answer seems most efficient (or quickly searching through the code).