To build closet shelves, you can get some basic ideas at the Do It Yourself website: http://www.doityourself.com/stry/closetorganizer, or you can create your own design to fit your space and your ideals. Building shelves is probably one of the easier home design jobs. Just make sure you know how to place your nails, screws, etc. where they will have the support of the joist. Otherwise the
. drywall will just crumble and your shelves will fall. How to install shelves can be found at http://woodgears.ca/shelves/index.html or http://hardware.hardwarestore.com/learning/how-to-build-adjustable-storage-shelves.aspx, and for the less mechanically minded person you can buy pre-cut shelving that is ready to assemble from your local hardware supermarket.