Google Browser Sync
For anyone using Firefox, this is a great plug-in (made by Google). It will sync your cookies, passwords, bookmarks, history and window tabs (you can pick and choose just certain things if you want) to your Google account.
What that means is you can use Firefox on a different computer, and all your stuff will show up. I mostly wanted bookmarks, but it's handy to have the other stuff too.
http://www.google.com/tools/firefox/browsersync/
(thanks to Bobby for pointing this plug-in out)
I'm a boy... from San Diego, CA (USA). And I don't really have a whole lot else to say about myself.