Work with teen for the grand plan! Put in this website search box: teen... Look at teen magazines at the library for cool ideas. Think about colors, shapes, patterns. Your creativity has no barriers! Use two color combos that are easy to mix and match. Paint walls, furniture, etc. Think outside the box. Paint a desk two different colors - one on the frame and the other on the drawers. Paint an all over pattern on a tall skinny section of a wall. If you don't want to commit to paint yet, see what it'll look like with dollar store wrapping paper taped to wall. Make pretend wallpaper with paint and a stencil. "Shop" in your house before you go out. Sometimes we have stuff in one room (or basement/attic) that can be used in another. Look for fun, kitschy, or unique items, for visual interest, and for conversation pieces Go to garage sales and thrift stores for big picture books. Use for prints for wall art. Get frames there also, or at dollar store. Get dollar store wrapping paper that is really pretty, interesting, or geometric. Frame it for wall art. Look for bulletin boards at garage sales. Paint frame and use dollar store wrapping paper for cork part. Attach with rubber cement or similar glue. Look for throw at garage sales or thrift store in bright color. Fold long way and put at end of bed. Build a wish list and take it with you when you go out.