I have SPD-SL pedals on both my bikes. I commute on my fixie (keep spare shoes at my desk at work), i shop sometimes during my lunch break or on the way home. Walking in road shoes (for short distances) isn't as much of a chore as people seem to think, especially if you put cleat covers on. Is it as comfortable as regular shoes? No, but they're doable. If I do plan to walk a lot, i'll bring my spare shoes in my backpack. Chucks don't take up much space.