Better Exception Handling in ColdFusion
We have been using basically the same exception handling strategy for several years. It has worked pretty well in all of that time, but we recently decided to switch it up. Our previous exception handling system (the one that we have been using for years) made sure not to display valuable information to users, but did send us an email with the pertinent information.
This made for a system that was reasonably secure (in that it didn't share any sensitive data on screen), but still allowed for us to quickly find out about any problems so that we could take care of them.