Cacher is the code snippet organizer for pro developers

CLNDR > https://github.com/kylestetz/CLNDR
  Useful full page calendar solution, 

Pikaday > https://github.com/dbushell/Pikaday
  Plugin for calendar drop down in forms, it's not great but it does what it 
  is expected to do

Chosen > https://github.com/harvesthq/chosen/
  Makes styling selects a lot easier and gives some cool options for more
  complex select options

Slcik > https://github.com/kenwheeler/slick/
  Awesome carousel tool, super easy to use and easy to style