For about 4 years the driver seat in my truck has been ripping. The rip got to about 8 inches long in that time. I was looking into calling an upholstery shop until I saw this video:
I decided to give it a try and although I don’t have a before picture I do have an after picture. Not bad for my first try!

You can tell it wasn’t done by a professional but you also can’t see the threads… much. I’m pretty happy with the way it turned out!