In this episode of Uke Minutes, Aldrine teaches you how to make your own Ukulele Case Humidifier. The ukulele like all wooden instruments is susceptible to warping due to dry air. This quick homemade humidifier should solve a lot of problems if you live in dryer regions. Just be sure to keep that foam wet and replace it every month or so.
Be sure to read the full article on Humidifiers found here.