A doctor once told me to weigh myself always in the mornings.. and after I'd pooed. He said poo can add up weight wise. I'm here to say it does. =)
I weighed myself this morning and saw I'd lost another pound. Soon after.. well.. the urge hit. I weighed myself again. Oh, yes I did! I'm not going to tell you how much the weight difference was but it was enough to make me laugh.