How to Write Letter Closings?

A closing to your note should reflect the nature of your relationship with the recipient. A flat yours truly will disappoint and perhaps offend a close friend. Leave the L word alone unless the recipient is a very close friend. Here are some closings listed in a more or less declining order of intimacy.
All my love Affectionately
Best love Warmly
Much love Best regards
Love Regards
Fondly Or just sign the thing

The following type of letter would receive love as a closing:

Dear Sandy:
You know me so well! I’m dashing through my living room in another headlong rush to another boring meeting, and I see your flowers and remember your admonition, “Take time to smell the flowers.” So, I am taking time—time to write this note and time to smell the flowers. They smell wonderful. They smell like friendship.
Love,
Mary