3 Greasemonkey scripts that will change the way you use Gmail

Today I am going to start a new series on greasemonkey scripts that will change how you use the web forever. Today, I am going to show you 3 greasemonkey scripts that will change the way you use a familiar component of the web, GMail. As simple as many of these addons sound, you will really notice a huge impact on your productivity. If you don't know what Greasemonkey is, or how to use it, look here:  http://thecomputeress.blogspot.com/2009/08/greasemonkey-and-what-it-is-useful-for.html

3. GMailTo

I cannot express what an amazing script this is. Have you ever clicked on an email in a link, only to open outlook or some other e-mail program? This script will open all of your "mailto" links in gmail. This will surely be an addon to your box of greasemonkey scripts.
Get it here: http://userscripts.org/scripts/show/5722

2. Pimp.my.Gmail

A great script, pretty much incorporates a smoother, slick interface, removes ads, and makes your inbox full screen. It adds more emoticons and a fixed navigation bar. It really can make an impact on how smooth your gmail interface is.
Get it here: http://userscripts.org/scripts/show/75047

1. GMail Unread Labels

This is an extremely useful script if you are someone who uses the label/filter function heavily, and you have several labels. This will save screen real estate by only showing the labels that have unread items in them.

Here is a link: http://userscripts.org/scripts/show/24297

Please elaborate on any other Gmail scripts/addons that you use in the comments!
Stumblers, please give a thumbs up!

Thanks!