http://sixrevisions.com/resources/cheat_sheets_for_web_designers/

Cheat sheets (also known as reference cards, reference sheets, etc.) not only helps you remember things quickly, but can also serve as wall decoration for your workspace.

In this post, you’ll find 28 excellent, useful cheat sheets in various file formats for Photoshop, Dreamweaver, colors, typography, and other web-design related topics all in one page with pictures of each cheat sheet.

If you’re looking for front-end web developer cheat sheets (more CSS, HTML, and JavaScript) check out Cheat Sheets for Front-end Web Developers.

Personally, I get mine from Visibone.