The biggest bang for your buck is to work on your waistline. Obesity and subsequently loss of body fat will assist greatly in improving your reflux (SEE MACROS and our diet/fitness programming). Along the same lines, stress will greatly affect your gut function. The same signaling hormones in your body that control stress (serotonin, dopamine), also control the way your GI tract moves and shakes. If you manage your stress this will help manage your gut.