I have been working on a TomTom POI of sites I visit for work. It has needed a few little tweaks but these were due to issues with the location data I had. I now have the first real version ready and have several co-workers that are using it too! I have written a html page to go with it detailing a version history and hyperlinks for download. I am now thinking about the best way to make it available.
I am going to write up a basic howto at some point and post it. It has already helped me out several times over the last week, the time it took to work out what I needed to do and get it done was well worth it. If you think a POI may help you, I would recommend trying it!