A successful repaint usually starts before the first coat goes on.(Image: http://proprecisionpainting.com/wp-content/uploads/2013/04/278656_216083735108859_7691868_o.jpg) Many spaces need small repairs, light sanding, and cleaning to remove dust or residue so paint bonds properly. Using primer on patches, stains, or darker colors you can try these out improve coverage and help the finish look even.(Image: https://www.shelteralternatives.com/images/uploads/nikki-wip.jpg)