<human>:  What's the most efficient way to paint a room?
<bot>: The most efficient way to paint a room is to make sure you have the right tools for the job. Start by prepping the walls by filling cracks, sanding them down, and cleaning them. Next, use painter's tape to mask off any trim and other surfaces you don't want to paint. Once the walls are ready, use a quality paint and an angled brush if possible to cut down on the amount of time spent painting. Finally, if needed, use a roller to apply multiple layers of paint quickly.