When you decorate an older single-wide mobile home, you face a few challenges. Besides an update, you will also want to enhance the natural lighting inside the mobile and expand the visual size of the home both inside and out. Start with a clean slate by ridding the space of dirt and dust, then approach decorating with efforts to lighten and brighten the space throughout. If you are on a tight budget, you can re-purpose items in your home or purchase inexpensive items from garage sales or resale shops to get your project started.