How picky are airlines about carry on size?

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Tags

1. #slightly
2. #inches
3. #smaller
4. #pockets
5. #allowed
6. #luggage
7. #carry
8. #including
9. #handles
10. #check
11. #commonly
12. #airline
13. #travel
14. #larger
15. #varies
16. #allowing
17. #wheels