Love simple ingenious tools. When there is only a pump for shrader valves and no adapter around you can cut the tip off the presta cap and it becomes an adapter!
Source: http://antranik.org/how-to-make-a-presta-valve-adapter-in-a-few-seconds/
Source: http://antranik.org/how-to-make-a-presta-valve-adapter-in-a-few-seconds/
