Wearing a supportive brace for the back or the shoulders for a few hours a day can significantly improve your posture. These braces are usually for those who have significant posture problems, but can be worn by anyone who is trying to improve their posture. Wearing these braces can teach your body where it needs to be positioned while providing total musculoskeletal support in those areas. Back and shoulder braces can be found online or at a medical supply shop. Some of these braces even have audible alerts that inform you when you are not sitting with correct posture.