Review (5/5): This is ingenious.
Wild horses couldn't get my husband or son to use dental floss until a friend gave my husband a Flosscard. He keeps it in his wallet and we all use it now if we are out for a meal. But alas our card ran out and believe it or not, my husband asked for a new supply for his birthday! I ordered the 20-pack with the hope he will share when he opens his present. I am so happy we discovered Flosscard and so is our dental hygienist.