Hello from California!
I'm a wife/mom/grammy and love snail mail. Its so fun to see something other than a bill or junk mail in the mailbox :)
I will appreciate whatever PC you send, but I do enjoy: fun patterns, religious, illustrations, numbers/letters, quotes, clocks, cameras, old barns, fashion, magazine covers, book covers, wine, quotes, Harry Potter, Disney, Disneyland, movie or TV related or books. Anything fun / different. Something in a language other than English would also be lovely.
Thanks, I'm looking forward to your postcard!