.To me, stripes and polkadots add instant vintage to any outfit. Just make them look classy and not childish. For example: Fall weather should have a cardi (like the one above) mixed with leggings and boots. For the summer, just trade the leggings and boots for shorts and flats and it's an instant adorable outfit..
I doubt it will cause you to loose 10lbs, but looks like a bitch of a workout.