User Stylesheets

Just used a user stylesheet for the first time yesterday for tweaking WordPress 2.7's new QuickPress widget.  The TEXTAREA for entering the body is way too short, but a simple line in my userContent.css file and it's magically fixed.  Not even remotely the use case user stylesheets were designed to handle, but it's simple and effective.  Far better than Greasemonkey, which is what I had considered first.