In this video tutorial, viewers learn how to tie a double handkerchief for tuxedos. Begin with 2 triangle handkerchiefs and fold one over the other. Over lap the triangle to form one mixed triangle handkerchief. There are 2 ways to fold. The first ways is to take a corner and fold it up. Then flip it over and fold a corner down to form a square shape. The second way is to roll in the tow corners to create a cone shape. Put a card inside the fold and hold it together with a pin. This video will benefit those viewers who are preparing for a formal dinner, party or special occasion, and would like to learn how to fold a handkerchief to look presentable and formal.