Who needs a jump rope?

Last night I sent my boys to their room to change into their pajamas. I went to check on them, since it was a little rowdy and seemed to be taking quite a while to change. When I got downstairs I saw them in their pants, and using their white button-up shirts as jump ropes. The sleeves were all twisted from going around and around. After he put his white shirt away Caleb dug through his drawer to find another long-sleeved shirt to use. He practiced this morning to see how many times he could jump. I'll have to ask him how many times he jumped.