Pfffft those who know and love you certainly don't expect thank you cards. And those who do expect them need to get a life and a clue!

I think I took along a photo of DD and a thank you card to my ob at the 6 wk check up. I didn't send any thank you cards and I didn't lose any friends! Frankly I don't remember ever receiving (or expecting) a thank you from anyone either.

Shorten your list.

PS I am assuming anyone who wants to see you also has your phone number too. Let them call, I leave email for work only.