Add a space to your OSX doc for organisation

When having apps in my dock, I like to have them seperated by "category" - e.g. browsers, web dev and productivity.

To add the spaces, you can run the following in terminal:

defaults write com.apple.dock persistent-apps -array-add '{"tile-type"="spacer-tile";}'; killall Dock

This adds an "empty" app icon that can be dragged around (and removed) as you see fit