Selling your art to bars and restaurants can be a great way to gain exposure and earn income. Start by identifying venues that align with your art style and then approach them with a well-prepared portfolio. It's important to negotiate a fair deal, considering both the potential sales and the exposure your artwork will receive. Remember, persistence is key, and don't be disheartened by rejection. Lastly, always maintain a professional approach, as your relationships with these businesses could lead to more opportunities down the line.