Posture

Good posture not only helps you look ten pounds lighter it's also been proven to make you more confident and successful. I've noticed how poor my posture is lately, holding cute baby all day and never standing up straight. A few tips to help:
Strengthen the upper back with seated rows, bent-over rows, and reverse flies
Stretch the chest - I like putting both hands on a door frame and then leaning through the door with the chest
Push your tongue against the spot where the roof of your mouth and the back of your upper teeth meet, it will automatically straighten you up
Tilt your pelvis and tuck in those abs - this will also help train your abs to stay flat, works better than crunches and is much easier (if I can just remember)