Code
In addition to HTML, CSS, and Javascript frameworks, I have a working knowledge of Ruby on Rails, PHP, Perl, and have done work in both Java and C for projects at university. I write clean, semantic code, and can build fully-functional prototypes quickly and without fuss.
Software
Vim, Textmate, Coda, and Git are my usual coding implements, and I turn to Adobe Photoshop, Illustrator, and InDesign for creating digital assets. I'm just as happy working on the command-line with 10 screen sessions open via SSH as I am kerning type and pushing pixels.
Hardware
Not many people still use the basics, but I do. I've always got a sketchpad within arm's reach in which I sketch layouts, map out database schemas, and brainstorm creative concepts. Pencils, markers, a sketchpad, and a scanner in the right hands are powerful, efficient tools.