How To Paint Walls With A Brush Only. I'm not a fan of rollers. If you don't clean your brush immediately after using it, the paint will dry on the bristles and you'll end up with a stiff, unusable brush.
Cutting in means that you use a paint brush to paint areas that are too tight for you need only 1 inch of paint for now.
Here's how i did it taking the paint pen, i just traced inside of the shapes and allowed the paint to dry (which it does rather quickly) before going over it a second time. And they still don't look great. Place it on the wall, checking the guide wheels are clean. Take a brush and cut in—paint along the molding and the corners from top to bottom—while your friend uses a roller to cover the main expanse of the wall.