Self Esteem

What options are out there to boost self esteem and feeling comfortable in my own skin? I'm by no means thin but I'm not necessarily a big girl either. Let's just say, if I was 20 pounds lighter I would be happy. (So I think.) I have a small pudge, aka small spare tire. My husband says he doesn't mind but me being a girl, I don't believe it. Any help would be great!