Me when I notice that Helsinki's public transport app uses OSM and you can just search for connections to a place of interest as if you were using CoMaps.
@mapu@Sunshine I think the best way to learn JOSM is just to start using it, and work out how to do things as you need to. I still kick myself every now and again when I discover some new feature I didn't know about. Do check out the different modes at https://josm.openstreetmap.de/wiki/Help/Menu/Mode though. In particular, 'W' mode is awesome for correcting/improving the geometry of ways.
Alright question time: how do I find out the info on a GPX track? I can see it in the map view, and I can see it in JOSM. I just can't get any info about it, even though it's a public trace and is no doubt on the publice trace OSM website