She wrote to me with this idea for parents of little kids: “Create an indoor ball pit by using an inflatable kid pool and whatever balls you have lying around the house.

Concourse Dance Bar is a throwback club with no dress code and a $5 cover. Oh, and it has a ball pit too (and a vintage photo booth, Pac-Man game and slide).

Skip the beach and jump into this giant ball pit in D.C. instead. — -- It’s the beach without the heat and an ocean full of nearly one million small plastic balls. That’s right -- the ...