I'm sure most people won't see this as a big deal but... my son finally listened to me instead of having to put him in "time out" first.
He was playing with my in-laws dogs (2 chihuahuas(sp?) and a puggle) and knocked over the trash can. I asked him to pick it up and he actually picked up the trash can ( I had to help since the trash can is just about as big as he is). He even picked up ALL the trash that dropped out before going back to playing with the dogs. BTW, my son is about to turn 2 and seems to think I am the last person he needs to listen to.