It was a little over a year ago when I shared my student loan spreadsheets and how I'm working to knock them out. And I'm pleased to say that I have finished paying off my second-to-last loan!
Sidebar: It really should be a requirement that someone explain exactly what the different types of loans mean and what their implications are before any student is allowed to take them out. Other than "you'll have to start paying them off six months after you graduate, from then until THE END OF TIME," I don't think I knew anything about the different types of loans, how they could (or could not) be consolidated, what consolidation meant, or anything else, and it would have been nice to know exactly what I was getting myself into.
I started paying down the high-interest ones immediately, at least a year or two before the six-month grace period started. When I graduated college, my parents — generously — paid off that horrible Sallie Mae, and allowed me to pay them back instead at a much lower interest rate.
(Still working on yours? As always, I'm happy to share my handy-dandy "blank" interactive spreadsheet, if you e-mail me!)