While you do not require any expensive brushes or tools, you may need specific brushes that guarantee your desired finish.  Brushes with short bristles can be frustrating and do not allow your paint to flow well. Hard and inflexible bristles can leave a scratchy impression on your furniture. The best option is to use soft brushes with natural bristles. They allow you to be expressive and ensure that you get the best finish. Ultimately, any brush that you feel comfortable working with should get the job done.