I've had this vanity bench for quite a few years. It came from Target (said like Tar-jay) a quite a few years ago. Over the years I spilled a few things on it and it was looking a little less than perfect. I had some fabric left over from the bookshelf makeover and used it to recover the vanity bench.
This was one of the easiest things I have ever done! There were 8 screws that I had to remove to get the seat part off of the legs. Easy. I left the existing fabric on there because you couldn't see it through the new fabric (if it ain't broke don't fix it, right?). Then I just cut my fabric to size and used a staple gun to secure it. The hardest part was making sure the fabric was super tight and snug, and let's face it, that part wasn't even that hard! Then I just had to rescrew the seat back onto the legs and that's it!