Google Send to Phone for Firefox is a handy lil’ plugin I just picked up for Firefox which I use as my main browser. Basically it allows you to select text from a browser and send it to your cellphone. Send yourself phone numbers, directions, insults, etc. Slick. Those… Googlers.
Couple of other plugins that are a must have include Web Developer Toolbar, Copy Image, Foxy Tunes and ColorZilla. If you’re not using Firefox, you should be.