Finish One Wall Before Starting Another
It might seem easy to do all the corners and trim in a room, then go back to roll the walls, but don’t. Pros get a seamless look by cutting in one wall, then immediately rolling it before starting the next. This allows the brushed and the rolled paint to blend together better.
Cover your paint bucket, tray or container with a damp towel when switching between brushing and rolling to keep your paint and tools from drying out when not in use.