How I build my GPX tracks

A good track is half the trip. Here is how I build mine, from the first idea to the file loaded on the watch.
1. Scouting
I start with paper maps and other people's reports. I note the sections that come up often: if three people mention the same trail, it is worth the detour.
2. Water points
Every spring or fountain goes into the track as a waypoint. In limestone mountains, water decides the route, not the climbing.
3. Plan B
For each day I prepare an exit: a descent to the valley, a train station, a road. Not needing it is great. Not having one is a problem.
4. The check
Before leaving, I re-read the track kilometre by kilometre with the profile in front of me. Ten minutes that prevent a lot of surprises. All my tracks then end up on the GPX page of this site.