Vlad, the Validator!

So, for Chapter 3's hands on exercise, I ran my format1.css through the W3C style sheet validator, located here:

http://jigsaw.w3.org/css-validator/

And amazingly, it validated the first time around.
I wasn't sure about my second style sheet, format2.css, so I ran it through as well.
It also showed no errors.
This was surprising to me.

I've had quite a bit of trouble getting my XHTML pages to validate, so I purposely broke the style sheets and tried validating them again. This time they showed errors. I fixed them and validated again, no errors.
So, you know, at least I can occasionally get one or two things right the first time.

I would like to say that the validator is VERY easy to use. Both copying text and uploading files to validate was very simple. Maybe it's because I had to purposefully break the page to get errors, but I found the way it pointed out my errors to be very clear.
I would definitely recommend the validator for other students, whether they're first time takers of the class, or returning web developer veterans.