Painting the interior of your home is a big job, but if you know what you’re doing, you can save hundreds by not hiring a professional painter. A few ways you can get a professional look without spending a significant amount of money are: Remove everything out of the room, including light fixtures and floor molding. Purchase a good drop cloth to cover and protect floors. Repair any cracks or dents in the walls and sand them down so the paint can better grip the walls. After sanding the walls, wash the sand dust off with a damp cloth. Prime your walls so the true color of the paint can be seen; it will also ensure the paint is applied smoothly. Lastly, purchase a roller that is lightweight and not too long. The roller should hold paint, but not create too much texture. More here