The great thing about wooden cigar boxes is they can look really nice sitting on top of your office desk and obviously that they keep your favorite cigars fresh. On the negative side however is the that they do need a little maintenance from time to time.
Cigar humidors require hygrometers which are measuring devices used to calculate the amount of humidity in the air. The ideal humidity inside your cigar humidor is between 64-72% humidity. When your hygrometer dips to 64 or below relative humidity, it's time to moisten your humidifier with some distilled water.
A common mistake made by many novices is they use regular tap water or drinking water for the humidifier and you don't want to do that because of the minerals and other impurities found in regular water. Always use distilled water.
Another mistake some beginners make is they soak their humidifier in the distilled water. Again you just want to moisten the humidifier and then give it a few hours to see where the humidity goes.
Another to note about cigar humidors is there location. You want to keep them away from direct sun light and you also want to keep them away from any electronics because they generate a lot of heat. Ideally your cigar humidor will be in a cool and dark place with the temperature somewhere between 60 and 75 degrees Fahrenheit.