Spotify Power Hour
**UPDATE** I have also released an android app version of this extension called 'Power Hour' here: https://play.google.com/store/apps/details?id=com.spotifypowerhour.spotifypowerhour This simple chrome extension allows you to turn a Spotify playlist into a power hour. Just install the plugin, navigate to the spotify web player, and inside the player you will see the option for "Power Hour Settings". While the box is checked, the next song will be triggered every 60 seconds (with a short notification) and a counter will keep track of your progress. If you want to disable the sound effect between songs, just click the bell icon to turn them off.