We also had the grand-twins over during my days off, watched Lego Batman, cooked hotdogs over a fire, and slept. The only way it could have been better would be if I'd gotten some writing time in, but sometimes the days are just full.
Thanks for all your birthday wishes! I'm of an age where birthdays are a mixed blessing: You don't really want to admit to getting older, but it's nice to be thought of.
Oh, and the twins got to go swimming. I supervised with the camera.