In this tutorial, we learn how to create interactive shortcuts in Gmail:Greasemonkey. Start off by searching for "Greasemonkey", then click on the very first result. Click to install this, then once you have it you need to restart Firefox. Now, on the bottom of the screen you will see a little monkey icon. After this, type in "Greasemonkey scripts" into Google, then search for "modified Gmail macros" and install this. After this is installed correctly, go to your Gmail account. First, type in "h" to bring in a help command and adjust your keyboard. After you do this, you will have shortcuts available on your Gmail that you can use all the time!
Oh... and if you're working from home these days, be sure to check out Gadget Hacks' Working-From-Home Essentials.