Uses for poop scoop bags.

As a responsible dog own (and aren't responsible dogs the devil's own job to find?) I always carry poop scoop bags in my pocket.  It's amazing how useful they can be.  This year I've used them when picking blackberries and plums from the hedgerows.  One made an emergency seal over the split fuel tank cap on my mower.  They have also been very useful when in a restaurant.  I'm a Jack Sprat so always have offcuts of fat which I won't eat.  Then I think "if only I had a bag to take this home for my dog (Henry)". WAIT a minute!!!  I have!  What uses have you used poop scoop bags for, other than the obvious?