"Post-It Flags are about finding things fast," he says. "And I thought, 'Well, why couldn't you put the two together and then you'd have the flags right at your fingertips—two in one."
These pens aren't just for the students in your life, as Oprah can attest. David says they're also popular among moms and office workers. Every audience member will get to test them at home, because they're all getting a box of Post-It Flag Highlighters.