1. be in someone's shoes
to be in the situation, usually a bad or difficult situation, that another person is in
2. common as an old shoe
lacking in manners or refinement.
3. tough as (old) (shoe) leather
Having great physical strength, health, or resilience.
4. comfortable as an old shoe
Very familiar or comfortable, especially in an agreeably unpretentious or unrestrained manner.
5. wouldn't want to be in (someone's) shoes
Used to express that someone else is in or about to be in a particularly difficult, unpleasant, or unenviable position or situation.