kbPIEs
kbPies is a Blender3d addon for quick switching screen layouts.
I've been using it for a long time and I can't imagine Blender without it anymore - it speeds up switching layouts and after a while becomes very intuitive. However configuration was not really user friendly so here's an update: easy hotkey setup and no more copy/pasting layout names.
Get it here for free:
https://gum.co/gAzAr and enjoy.
Contains two versions (one for Blender 2.79, one for Blender 2.80 Beta release)