I used to use keyboard shortcuts wherever possible, but several of the add-ins I have installed don't have shortcuts as default, and I didn't want to start setting up obscure combinations of Alt+Shift+Ctrl, etc.
Actually, the keyboard shortcuts I use are mostly using ALT to access the menus. I also create a lot of add-ins. The way I get around that is to create new menus on my toolbars and not buttons, thus they are easily accessible by keyboard as well.
_______________________________
When the mouse really started catching on, I thought hard about switching. But I can literally do 3 things in the time it took for me to move my hand from the keyboard to the mouse (I use to touchtype over 120 wpm. Now I'm about 70 I'd guess) and get it into position.
Yes, there are certain things you have to use the mouse. Pivot Tables, graphs... but most things are accessible by keyboard.
Sorry, I didn't mean this poll as a slag on mouses. There's just no way you could have objects on your worksheet and do graphs without a mouse. The poll is meant solely about speed and getting things done.
For example, just moving around with Ctrl-[ and Ctrl-] can't be beat if they'll take you where you want to go.
________________________________
I like gingerafro's idea of listing tasks and indicating what you use. Wish I thought of that. The poll would be better for it. Maybe I (or someone else) will put up another poll after giving some thought on what would be good tasks.
________________________________
I used to use Emacs. I remember when emacs users were laughing at dos WordPerfect and Word and what they were promoting as WYSIWYG. Gahhh!!!!
Even if you're "puttering" along at 70 wpm that beats the soup outta me. I can't recall exactly what my scores were back in high-school typing class but they sure as heck weren't 120 wpm! 
[/list]
