One of Vista's best features is off by default in XP

Cleartype is on by default in Vista and makes it easier on the eyes when using LCD displays. XP supports Cleartype but it is off by default. Here's how to activate it:

Right click on the desktop and select, "Properties," select the "Appearance Tab" and press the "Effects" button. In the combo box next to, "Use the following method to smooth edges of screen fonts," select "Cleartype." Close the boxes by clicking Okay, and watch the transition take place.

I read the first positive review about Windows Vista on Ben Forta's blog. Cleartype was his number one feature, but there were others. You can read about it here.