Things I cannot do without :

// JavaScript

 # Ruby

 # Python

/* CSS */

XKCD

The Oatmeal

Things I can do without:

 /*
  * Internet Explorer
  * <font face="rubbish"><b><i> Bad Markup</i></b></font>
  * Social Networking
  */

I can be reached at my firstName[dot]lastName[at]gmail[dot]com