I'm a huge fan of Beagle Brothers style cheat sheets, because nothing promotes the illusion of mastery like a densely packed chart of obscure reference information:
Just throw some of those babies up on your walls and people will know that they're clearly dealing with a coding genius!
I've seen the CSS Cheat Sheet before, but I didn't realize there's an entire set of cheatsheets freely available from the same site:
These are all conveniently provided in PDF or PNG formats. If you're a Microsoft .NET programmer, there's no shortage of cheatsheets for you as well:
- Visual Basic 2005 Keyboard Reference
- Visual C# 2005 Keyboard Reference
- Visual C++ Keyboard Reference
- Format String
- ASP.NET 2.0 Page Lifecycle and Events
- Visual Studio 2005 C# code snippets
If you don't see the one you want, here are few other sites that aggregate cheatsheets. Many of them are open-source / UNIX oriented, but they run the gamut.
Know of any other good cheatsheets not listed here? Share in the comments!