Oh, yes, even for double doors ... they get 2 thank-yous. I also hold doors open for people. It amazes me how many people don't hold doors for the next person.
DH expects me to stop and wait at the door so he can open it for me and he gets grumpy if I don't. He also walks on the street side of the sidewalk and yanks me to his otherside if I walk on the street side LOL. I keep telling him that when I'm with a co-worker etc. they don't do that so I forget LOL.