30 + Tools and Hacks for Gmail

This makeuseof site has some cool Gmail hacks and tools. There are FireFox Extensions, GreaseMonkey scripts,Desktop APPS & Web TOOLS and plain old tips and hacks. The ones that I like the best are Gmail attachment icons and label colors. below is an image of all these things in action

Link: http://www.makeuseof.com/tag/gmail-craze-30-tools-to-make-your-gmail-better/