Letter Closings

In order from most formal to least formal
1. Sincerely
2. Regards
3. Until Next Time
4. Thank You
5. Thanks
6. With Gratitude
7. Best Regards
8. Yours Truly
9. Goodbye
10. Enjoy
11. Your Friend
12. Bye
13. Take Care
14. Love
15. With Love
16. Smiles
17. Rock On
18. Cheerio
19. Smell You Later
20. Toodles