If you don't label your boxes to indicate what's inside, then when you arrive at your new home, you and your movers will have no idea where each box goes. Imagine how tedious it will be to go through every single brown box, trying to figure out what's inside and which room to place it in. So, be smart and label each box. You can label it by the room and with a general description of the contents it contains. If you include the room, then the movers will know where it goes. If you just label it by the contents, then only you will know where it goes. The label should be on the sides of the box, not on the top of the box.