LPT: You can sort your Spotify playlists better if you use http://ift.tt/2o5vYhT

On Spotify, you can currently only sort your playlists by Title, Artist, Album, the date / time it was added & track length

But if you use http://ift.tt/2o5vYhT, you can sort them by, Number added, Title, Artist, Release Date, BPM, Energy, Dance, Loud, Valence, track Length & Acoustic.

You can either override your current playlist or create an entirely new one with your new sorting options. I currently use this to sort my playlists by release date so they newest releases are at the top.

P.S you can also find and delete the duplicates in your playlists using http://ift.tt/2dV7DHu. it will search your playlists for duplicates and display them. You can then delete them with the press of a button.