Do You Have Any Idea What Any of These Things Are Used For?

WTH? I like to think of myself as pretty worldly and knowledgeable, but apparently not...because I had no idea what these everyday things are for:

Things like the loop on the back of dress shirts.....or the extra cloth you get when buying a new outfit.  (I thought it was to patch your clothes if you got a whole in it...Nope!)

Watch the video, did you have any idea what any of these were actually for?