What tricks have you taught your dog?

Our Dakota, a white German shepherd, plays dead. When she was younger, we’d say, “Dead dog!” and she’d fall down and roll over on her back with her feet in the air. It was funny!
Now that she’s old though, we only ask her to play dead when she’s already laying down. But now she only slams her head on the floor. No more rolling over, but it’s still funny.

I’m trying to teach our other dog to close the gate to the back deck when she comes out. She’s a border collie, and they’re supposed to be smart, right? I’ve been teaching her to shut it by pawing at it. Not having much luck at this point, but the other day, I said, “Close the gate!” and she picked her foot up and pawed at the air. But she was no where near the gate. But I have confidence that she’ll get there.

So what are some cool tricks, or just cool things in general does your dog do, or that you’ve taught them?