Small #FediTip: if you encounter a message or thread that is in any way useful to you, bookmark it straight away.

Since the fediverse doesn't have full text searches, it will be very difficult to find that particular thing again a few days later. Especially if you cannot remember who posted it or it has no hashtags.

Periodically review your bookmarks to do something with them and you should be set.

Just to add: the official Mastodon app does not have the bookmark feature in their current version. The work has been done, but it needs a release.
@asmodai Tusky does have a working bookmark function. On the current official Mastodon Android app, I use the share function and share to myself as a Google Note.