I was lucky enough to receive a personalized rejection from an agent this week, with an invitation to send my next work to her if I haven't already received representation. I've heard that other writers send thank you cards in this situation, and wondered if this would be an appropriate thing to do? I'm very grateful for what she did, and I'd like to express that without seeming like a total loon.
It's never wrong to express appreciation.
A nicely written note amidst the flotsam and jetsam of the slush pile is always opened first.
No sparkles, no chocolates, no gin soaked hankies, no edible panties (although Killer Yapp does enjoy those), just a nice card saying "you rock Miss Snark" is great.
I'll be watching my mailbox.