If you live far from family (by far I mean what you consider as far) how often do you Facetime/Skype with them and LO?

I think I spoiled my mom by Skyping with her too often. I've been trying to include her into our daily routine. I live abroad and want to make sure DD recognizes her. But lately she's been acting like I'm obligated to do it. I think it's time to cut all the Facetime. I'm trying to figure out what the "norm" is.