recovering sofa and chair?

I have a old sofa and chair with a foot stool that my grandmother left me. I would like the do something with it for it to look better. The chair and sofa are wood with pillows. For the sofa there are 3 pillows for the back and 3 pillows for the seat. They are removable and zip up. Same for the chair. The foot stool is a standard square foot stool . I do not sew to good and got no money to buy covers. Any ideas that are simple to do to the pillows.