Takes you straight to your Google Analytics without having to click the 'Access Analytics' when you're already logged in.
NOTE: I've removed the browser action icon (to save space)...which was basically just a bookmark. Simply add a bookmark to your bookmark bar if you miss it.
if you type googleanalytics.com OR google.com/analytics it will detect the page and take you to your analytics (assuming you're logged in to your Google Account, of course).
UPDATED for Google Analytics style change.
Icon from Fat Cow.
I also have a "Straight to Adsense" and a "Tab Wrangler" extension
other sites by me: