If your furniture is older, you may be ready to freshen it up a bit. For those with boats and motor homes, changing out the cushions every few years is a must. Though this type of furniture is so popular with boat owners, foam cushions can get hard or break down over a period of time. What you need is new cushions to spruce things up. Begin by deciding what cushions to replace. Make a list of each one noting the size. If it’s an odd shape, it can be helpful to draw that out on a piece of paper.