I have had some success with my Zippo fuel evaporation problem by wrapping it in 3 layers of Saran Wrap. I can get 2-3 weeks on a fill this way. Obviously, I do not use the lighter. I have a weekly fill ritual just to make sure it is ready for use if needed, and wrap it with Saran if I am going to be on a trip etc.<br><br>Has anyone used their empty Zippo to start a fire? Pulling out some of the packing cotton and sparking it should work well.<br><br>Because of the Zippos evaporation issue my PSK's only contain disposable butanes.