How much are people planning to keep in contact?
We have a family WhatsApp group, and the rest of us use it pretty much daily, for idle chitchat. Ds doesn't really keep up with it, but we're hoping he might more now. (The kids also have a group chat but I don't think he's any more active on there either.) I like that as a means of communication because it's low-key but easy to keep up with the mundane details. He does reply to texts, so I will continue to text as I normally do I guess.
Basically our family style is little and often.
TailsoftheManyPaws
Yup, in Manchester! Got here late-ish last night, dropped off ds this morning, left him unpacking and went for a coffee and to buy him some lunch, and ended up staying longer than expected until he was all unpacked, as we found a sensible place to park the car, plus dd2 arrived. Then left him again and we and dd2 walked into the centre to see the end of the Tour of Britain (bike race). Texted him when we walked back to the car asking if he wanted us to say hello again, otherwise to have a good evening, and he said he would have a good evening 
Staying over tonight and heading to Newcastle tomorrow, doing both northern drop offs in one go rather than having to go up and down twice.