Store-bought and restaurant dressings have so many calories! The regular dressings have lots of fat; the light dressings have lots of sugar. Make your own and cut way back on the calories!
Greek yogurt is a great base for mayonnaise based-dressings like. I love balsamic on a salad, but it can be too strong for other people, so try rice wine vinegar or one of the new flavored vinegars.