When I first started I did an online delegate management system for our course sites. It took me the best part of 6 months to get everything done. With some new stuff we´ve added to Pharma Foundation on some US courses it wouldn´t work with the new system.
Because of this I had to effectively turn the system into an email based system that we can manage oursleves. This involved re-coding the entire registration system. Managed to do it in 4 hours. That´s fast coding!
I'm a web developer based in the East Midlands, UK and if I keep up the current rate, I might have developed 3 million sites by the time I retire