When Elena decides she wants to be helpful, she can be very good at it. She normally throws herself onto the floor in violent protests whenever I make her clean something.  But once in awhile, she will decide she's going to pitch in and then she will dust every room in the house or sweep several rooms.

Fortunately, she was in a helpful mood when Sam started to fall asleep at the kitchen table in the middle of his snack.  I was upstairs and oblivious to the fact that he was losing consciousness, but rather than letting her brother collapse onto the floor, she managed to piggy-back him all the way over to the living room and put him down for a nap. 

Like I said, when she decided to help, she goes all out.  Here is Sam taking his nap after Elena tucked him in.  You can't tell, but there are about five blankets there. (She's not really asleep, but also wanted to pose in the photo):