We kept having to change a flat tire on one of our bikes on a 1500 mile New England tour.
Third flat into the trip, we stripped our flatwrench. Barely got the wheel back on. Five miles later, a brand new monkey wrench on the side of the road, big enough for the wheel but small enough to almost be a bike tool, and literally brand new. Magic!
Also found a sweet fishing hat that tour. Permanent sweat stain, though...