I’m still very busy with my day job, but I did have a chance to put together a Firefox extension over the weekend. It looks through your history, and puts your top ten visited sites as shortcuts in a toolbar. This is something I wanted for my own browsing, since I have a lot of sites I visit often, but I find bookmark management tedious.
You can give it a whirl at http://petehistory.com
I know I’m not alone in finding bookmarks a pain (eg http://wiki.mozilla.org/Places quotes figures that only 1-3% of page navigations use bookmarks or the history), so I believe other people will find it handy too.