Thank you for sharing your real project experiences with us Jamie. 
They are especially valuable as you are one of the most expert person in SSIS.
Vincent

Good article.  I use most of your suggestions already.  However, I use the SSIS log provider for Text files and just let each package execution append to the end of the log.  I have the package begin and end logged as a way of determining where each execution began.  I use Excel to read the log files; since the last execution of the package is at the end of the file, once the log is open I just scroll down to the bottom.  It takes a couple of extra seconds, but with all the history there in one place I can easily look for trends.

Thanks all for the comments thus far. Certainly nothing there that I can (or would) disagree with.

Dave, I have an article here that discusses one possible use of event handlers: http://blogs.conchango.com/jamiethomson/archive/2005/06/11/SSIS_3A00_-Custom-Logging-Using-Event-Handlers.aspx in case you're interested.

-Jamie