Run, don’t walk, and read and the entire post (and a very emotional one at that) about why unit testing mattes.

To quote the bottom line:

If you care about code quality, business process, the business you work for, and respect for yourself as a quality developer, less bugs for you and your end users, and ultimately getting shit done and going home sooner because you had less bugs today to work on, therefore I can now spend more time with the family, then you’ll promise yourself the very same thing starting today.

Amen!