I've been using ColdFusion since umm... 1996?, a long time anyway, so you'd think I'd know everything that there is to know about CF, its tags and functions. ;)
I jest, of course. There is always something new to learn that's exactly what I found out the other day.
I've just written a simple AJAX widget to go on a client's site to enable them to have a simple question/action work flow on their site. You know, the "Have you done this? Y/N" "If Yes do this, If No ask next question" kind of thing. It was pretty small workflow and I was contemplating simply hardcoding the whole thing. After a chat with a colleague to try and straighten some ideas out in my mind I decided to have an XML config file that contained the steps in the workflow.