CSS

I was happily coding along today when I noticed a site I was working just looked weird in IE.  An hour and a half later I stumbled across a post on Drupal.org about IE ignoring more than 30 stylesheets.  And sure enough, they did this on purpose : http://support.microsoft.com/kb/262161
 
WHY WOULD YOU DO THAT!
 
Ok - decision made.  My next computer will be a Mac.

Have a client that can't quite figure out what font they want for their website?  Instead of burning time on the trial and error approach, why not ask them to use one of these two great websites to help them pick exaclty what they want:
 
For plain text, try sending them to typetester where they can choose from a list of common web fonts.  Depending on how computer savvy they are, they can then either send you the css to the font they want, or just tell you what options they picked.