Proper closure

I often struggle to find the proper closure for email or snail mail letters. So here is a quickly researched list for my future reference.

Always,
Best,
Best wishes,
Cheers,
Fondest love, (Princess Diana?)
Hugs,
Love,
Mahalo, (Hawaiian for thank you)
Regards,
Regretfully yours,
Sadly,
Sincerely yours,
Thank you,
Thanks,
Warm regards,
With every good wish,
With respect,
With kindest regards,
Yours faithfully,
Yours in haste,
Yours truly,

and in my search I discovered freesampleletters.info that provides useful free sample letters for a variety of correspondence.