The Humi-Disc from Cigar Savor makes humidifying your cigars real easy!  Immerse the disk in regular tap water for 15 minutes. Take the disc out of the water, dry it off and affix it to the underside of your humidor lid using the magnet glued to the back of the device. One disseminates enough moisture to humidify 25 cigars. Depending on the conditions in which you store your cigars -- some environments are drier than others -- you will need to refill the unit every month or so.

When you immerse the saucer in water, the gel crystals inside absorb the water, turn soft and expand to form a uniform gel pad that fills the space inside the disc. These gel bits give off moisture and slowly dry and shrink until refilled again. The gel crystals absorb 100 times their weight in H2O and do a good job of keeping a relative humidity at or around 70 percent.