The Real Housewives of Beverly Hills' Kyle Richards posted the sweetest tribute to Teddi Mellencamp for a special reason.

Matthew Broussard, a rising figure in stand-up comedy, often gets material from his mother, Ann. Ann, 78, a retired biologist ...

Include the customer's name at the top of the note (i.e., "Dear Chloe.") This will make the thank you note seem more personal and less like a standard form letter.