Martha's Favorite Bow
This bow is foolproof. To estimate how much ribbon you'll need, loosely wrap the ribbon around the package you'll be tying; for a very large bow or long tails, allow more ribbon. Wrap the ribbon around the package, and pull until it is taut.
Form ends into two equal loops that are long enough to overlap and work with.
Cross the right lap over the left.
Knot the loops by pushing right loop behind left, under, and through the hole.
Pull the knot tight.
Adjust the loops and tails until they are the same size. Notch the ends if desired.