Arise and Laugh

You are a M.O.M. when....
every where you leave a trail of items behind you.

I find myself leaving something somewhere every time, even if I check and check again. Sometimes I don't even realize I took something somewhere and then wonder later where it is. I think this is a crazy thing but I am consoling myself by just admitting that it is my way of making sure I return. What is the most common thing you leave behind?