If you call them "mom," "dad," or something equivalent, how did you transition to that?
I call my in-laws by their first names. About half the time they sign their cards to me as "Mom and Dad," and half the time with their names. Usually if if my MIL leaves me a voicemail she says "Hi it's Mom." We're going to be spending a lot more time with them in the near future and I'm thinking at some point I will probably start calling them Mom and Dad, but it's going to be soooo weird changing.
My husband avoids calling my parents anything just because he doesn't know what to call them, lol. He calls my dad "Sir." I think in the 8 years we've been together he's managed to avoid ever having to address my mom by any sort of name.
What do you call your own parents?
Mama and Daddy.