N.A.
We have never lived close to our family until just recently 9 my Dad is 1 hour away)
We had our parents read books on CD and send the books with the cd to the kids so thier voice is familiar. ( Our families only visited about 1 time every 3 months at the most and some only 2 times a year)
We also had them send letter and pictures weekly ( sometimes a postcard) My Mom also had one of each of my boys stuffed animals and everytime whe traveled she sent a picture of herself with the stuffed animal( that made the boys feel like they were with her)
My Inlaws go to FL and they send momthly postcards and packages one time monthly.