Last weekend, we started a thing in our house called "Disconnect Sunday". It was Mother's Day so as all normal rules were suspended anyway, it could hardly be called a launch. Doing it again today, till 6pm as agreed with my other half, actually means it could turn into a thing we do. Every week. On a normal Sunday.
This is not a religious thing. Sunday was the day of choice as naturally it is a family day when we probably wouldn't miss much in the virtual world. It basically means phones off, tablets off, PCs off, no Wifi, no mobile internet. Yes it is old-school. It is how we, the pre-"digital natives" generation, used to live.