Place the universal chair cover over the entire chair. Adjust it so the fabric is straight and covers the legs completely.
Walk to the back of the chair and smooth the fabric against the chair back. Grab the excess fabric on the right side of the chair back with one hand. Take the excess fabric from the left side of the chair back with your other hand.
Bring your two hands together, pulling the two pieces of fabric together. Depending on the size of your chair, you might be able to tie these two pieces of fabric together in a knot, if the chair you're trying to cover is very small. If it's a big chair, twist the two pieces of fabric together and secure them with a rubber band.
Cut a piece a 1- to 2-inch-wide piece of ribbon that is 2 feet long. Wrap it around the knot or the bunched-up fabric secured with a rubber band. Tie it in a bow.