This is an easy way to always have a bow that matches your wrapping paper. Take a leftover rectangle of paper and cut it into 1/4 inch strips, leaving about 1 inch of uncut paper at the top.
Gather the uncut portion and wrap scotch tape around it.
Now, curl the wrapping paper as you would curling ribbon. You will have any size bow you like and it will always match your wrapping paper. The downside is you won't have small pieces of wrapping paper you hate to discard and are too small to use!