Mick Tagger lets you like a song, save it to playlist, open the playlist or queue up more songs with just a few strokes on your keyboard. No mouse needed.
Why keyboard shortcuts for Spotify?
Doing anything in Spotify is a mouse intensive activity. To like a song, save to playlist etc. you have to click around the Spotify app, a lot.
Switching to Spotify to add to a playlist also means context switching. You lose track of whatever you were doing just to add the song.
Give MT a try and in a few days you'll notice operations that took minutes will take seconds.
The app is free to download (just put $0 in the box and get it), but if you like it, consider donating a few bucks.
Hope MT makes your life easier!