1. It's as light as a feather.
2. It's as dry as a bone.
3. It's as flat as a pancake.
4. He's as mad as a hornet.
5. It's as old as the hills.
6. It's as quick as lightning.
7. She's as sick as a dog.
8. He's as strong as an ox.
9. They're as different as night and day.
10. She's as stubborn as a mule.
11. He's as proud as a peacock.
12. She's as white as a sheet. (usually used when someone is very afraid or very sick)
13. It's as solid as a rock.
14. It's as good as new. (used after something broken has been repaired)
15. It's as clear as mud. (= it's not clear at all)

Fact
Leather skin does not have any smell. The leather smell that you sense is actually derived from the materials used in the tanning process      .. More >>