Tarane Yari

It can depend on the type of UI you are looking for but generally websites like Screenlane, Godly, Mobbin, Design spells and pttrns. and of course there are always options like Dribbble or Behance there.

Replying to work emails by turning it into a speed and strategy game, which only works for toxic work environments. It also has bonus points for creative CC combos, like looping in that one person who might care just to stir things up, or the ultimate power play: CCing the boss's boss.