If your children have grandparents in the vicinity, I certainly hope you're taking full advantage of them. Ours live far away, so we can only abuse their good natures from time to time, until the kids are old enough to fly unaccompanied.
One grandfather in England put together a list of activities that people can do with their grandchildren this summer, and it makes me want to pack my kids up, pin a note to their shirts, and ship them off to this guy to hang out for a while. Train excursions, walking and cycling tours, visits to castles and manor houses, about a jillion museums and zoos. It sounds positively fabulous.
When my kids are just a little bit older, they'll be able to spend summers chilling in the AC with Grammy in Phoenix, going to movies with their cousins and doing art projects with their great-aunt. They'll explore the Minnesota countryside with their Mimi and Papa, learning to paddle canoes and waterski. I hope their memories will be as fond as my memories of driving around the Midwest with my grandparents, hitting up farm auctions and visiting distant relatives. But I wouldn't say no to anyone who'd like to volunteer to act as an adoptive British Grandparent to my kids. Dude, castles!
Please share what your children will be doing with their grandparents as they get older, so I can decide if I need to ship mine there as well. Maybe we can work out a trade?