Since I sometimes go through long playlists or anthology albums while exercising, it is important to me to pick up where I left off the next time I exercise. I used to rely on checking my history for this, but now that my history is limited in size, it doesn't always work. If I could bookmark where I left off, I wouldn't need to rely on the history, and now I have figured out a way to do that. The trick is to save the song I stopped at to a new playlist. I could use a playlist called Bookmarks, but this works just as well so long as I don't have too many playlists. This way, the new playlist gets the name of the song and serves as my bookmark.
If the song is from an album I am playing, then I'm done, and when I want to resume the album, I just go to the one-track playlist, go to the album it's from, and resume the track within the context of the album. If I just clicked the song within the one-track playlist I made, it would just play that one track and not resume the album. So, it's important to go to the album first and find the track there.
If the song is from a playlist, then I should also follow the playlist. This provides a reminder of which playlist I want to resume, and it provides a ready link for doing so. To resume a playlist, I must go to the playlist the song was from, find the track I saved to a one-track playlist as a bookmark, and resume the playlist at that track.
I assume this will work on any platform, but it is labeled as Windows, because this commenting system requires overly specific labels, and Windows is what I use.