I'm taking a class on Craftsy called Stupendous Stitches. You have to make a "Stitch Bible" out of all of the stitches on your machine. I have been loving this because it's a way to use up all of those almost gone threads and bobbins.
Some of these stitches I will probably never use. Some of them are really cool. I have been stitching the default first and then varying the width and length of the stitches as instructed. You have to lower your tension as well. I have over 200 stitches on my machine and I am only in the 130's. I have a ways to go. I didn't use any of the button stitches.