After discussing template editing on another site, and how easy / hard it is to change the look and feel of your site to make it your own. I decided that in my opinion, the whole process is fairly simply to do but requires that you have knowledge of a few skills and a few tools to hand to help you out.
This is a basic outline of what to do and how to do it, use it as a guide to get you started on style modification, and applied to all sites using css and html.
First things first - lets cover the REAL basic stuff - not that anyone wanting to do this kind of stuff should be that much of a novice (you need at least half a clue), but more to emphasize the RIGHT way to do things. There are rules laid down by W3C and we should all do our best to read, understand and apply them....