Going for coffee:
In the early 70's, it wasn't uncommon for mom to say "Come on Joe, we're heading to so-and-so's house for coffee". Then we'd go to their house where she and mom would have coffee and talk (sometimes several moms), while us kids would go off and play. Sometimes they'd come to our place, but mostly we'd go over to their house. Those were fun and simple times. I think that's a lost custom, however, especially now that the majority of women aren't stay-at-home moms.