I just finished pampering my X with a full detail and wanted to let you all know about a new product that I tried. It is by Meguiar's and it is three different steps.
Step 1 is a paint cleaner to remove oxidation, swirls, and minor scratches.
Step 2 is a polish
Step 3 is a carnuba wax
I was very impressed with all three products. My X looks better now than it did when I got it new in '01. This stuff was $4.99 per bottle from the local Auto Zone.