What happens when you have a room that is used for more than one purpose? Should you build a wall to designate individual spaces? While building a wall would certainly achieve your goal, it isn't necessary to go to all of that trouble.
Putting up a wall is a very tedious process that is also costly. If you rent, you may not even be allowed to do that. Instead, you can put up a room divider. If you really want to save money, you can make your own. This is an easy project that even the most uncreative person can do in a short amount of time. You can also look for modular arts blocks via http://www.modulararts.com/blocks/designs.html.
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There are many materials you can use when creating your own dividing screen. Panels or doors can be nailed together to create a fast partition that does heavy dividing duty. You can also use rows of tall vases or plants if privacy isn't a concern. However, it doesn't have to be quite so complicated. You can easily make your own divider by using fabric or drapes.
Making your own divider can be fun group activity for your whole family to enjoy. If you're making the divider for a kids' room, get the children involved in choosing the fabric and hooks. Perhaps each child can choose a fabric to display on their side of the room and you can put up two layers of fabric.
You can also add stitching and beadwork if you're really creative. This is something that you can customize all you want if you have the extra time and money, or you can just go for a bare-bones version that is cheap and fast.