In one sentence, describe what the following article is about:

Wardrobe boxes are special cardboard cartons designed to move clothes that are still on the hanger. They each have a metal hanging bar so you can hang your clothes up. One wardrobe box generally holds about 2 feet (0.61 m) of closet space.  To calculate how many wardrobe boxes you need, measure the clothes in your closet, and divide that number by 2 feet (0.61 m). Wardrobe boxes are available at almost any packing supply store. If you have additional hangers that you want to bring, hang them in the wardrobe box as well. This is an easy way to move your hangers. Hanging them from the rod in the wardrobe box will prevent them from becoming tangled during transport. To maximize moving space, try hanging items like belts and purses from your hangers. After you have placed your hangers and clothes in the wardrobe carton, press down the flaps on the top of the box. Use heavy-duty packing tape to seal the top of the box. Then use the tape to seal the front of the carton shut. To keep your clothes and hangers from falling off the wardrobe rod, make sure you move the box with the rod side facing up. If necessary, draw an arrow on the side of the box indicating which side the rod is on.

Summary:
Determine how many boxes you will need. Hang your clothes in the wardrobe boxes. Close and seal the wardrobe box when it is packed. Transport the wardrobe box rightside up.