Main problem I had was that I put my new bulbs in upside down on first attempt (which did take more than 10 mins!) which gave me fantastic plane spotting abilities at night!
On second attempt I lost one of the clips inside the headlamp which was fun (that took more than 10 mins to fish out!) Finally after all that practice, the final attempt was much quicker. Now Ive just bought an HID set up, so more practice on the way!
My wife says it's a pity I've nothing else more important to do!