Inertia at this point, but it started out as a help for billing clients when working onsite. A chunk of my work requires billable onsite visits and I was bad about tracking arrival and departure times as I arrived and departed.

At this point the software I'm using for mileage tracking covers that (and will show my route using a certain ubiquitous mapping system), but I still have that package generating kml files and uploading them twice a day.

Edit: looks like just over 5 years of daily kml files, likely mostly useful for showing just how few new places I go.