2 items not as good as this....
Something I heard of on a rock radio show called a dental floss bikini (find your own illustrations to view privately if there are any)
and
Post-It notes inspired by Office Space.
https://www.google.com/search?q=office+space+post+it+notes&tbm=isch&sa=X&ved=2ahUKEwjF78ab1Pv_AhV_m4kEHXjvB5IQ0pQJegQICxAB&biw=1058&bih=486&dpr=1.51