If you're a Lifehacker reader you may already be hip to this great Firefox extension. Better GMail is a collection of Greasemonkey scripts brought together as a standalone extension. While you can certainly install the scripts individually the extension offers a one stop supply which will work even without Greasemonkey.
Among the additions made by the extension are the ability to create folders in GMail (the one thing I really miss about traditional eMail), a status bar showing the current state of your GMail storage, and the ability to incorporate both Google Calendar and Google Reader into the GMail interface.
Head on over to Lifehacker and grab the extension to see what I mean.
When I first downloaded Google Browser Sync a few months back I really wasn't very impressed. While it was certainly helpful there were some bugs in it that really bogged it down.
Last week, while rebuilding my Portable Apps Suite installation I thought I'd give it another go. Right now I work across three computers where I am free to install my own stuff and a couple where I'm fairly restricted. Despite being unable to install Firefox I can certainly run it off a USB or SD card - the issue was just keeping my bookmarks up-to-date. After re-installing Google Browser Sync on my three primary PCs and setting it up on my USB Firefox install I'm happy to say everything is working great!
Anytime I boot Firefox on any of my machines (or from my USB drive) all the bookmarks I've collected on ANY of those computers are available to me. If I add a bookmark while at work - it's on my home PC as soon as I start Firefox.

Besides being able to sync my bookmarks and personal data I also learned that Google Browser Sync will sync notes taken in Google Notebook. Trust me, it's a great feature.
Setting up Browser Sync does require having a Google Account - but who doesn't these days?