― Save $4 on Knot Genie or Teeny Genie! The amazing Knot Genie and Teeny Genie magically get rid of knots. Not to mention complaining! Enter coupon code USFAMILY at checkout to save $4 on every brush you buy! Plus.............. ∙ Enter the $500 contest! With the introduction of four new Knot Genie colors in our limited edition Back to School Collection, Knot Genie/Teeny Genie is also running a fun contest. The contest is called, the Knot Genie Back to School Morning Meltdown [...].