My FDW has asked for Wifi password. I am not comfortable giving it as she is already on the phone all day long - I work full time, so hard to limit phone time). She has internet through her phone. What do you all do?

If that is the case, I feel that you should not give her WIFI password. If you give her, you have to be prepared that she will be on the phone and internet the whole day long. That is not something I think will be good.