I use the search feature a lot. Especially when I use the label search (i.e. putting "label:ocora" into the search field) I get really neat, but rather complex, results that I would like to go through over time. So I would really like to have a feature to save a search term like I can save songs, albums and artists.
I found this really great hint for saving links to search terms to my desktop, but I would find it way more elegant to have this feature built right into the Spotify app and the saved search terms synced across my devices as well.