Hi guys,
Not sure whether anyone here tried this.
I keep my guitars in a closet and I place a mini dehumidifier from Home Fix inside to keep the air dry. The dry air makes a world of difference in preventing string rust (2 days outside on a stand vs a few weeks in the closet).
Its pretty expensive ($99 Zzz.. Homefix is a ripoff), but I guess until the cheaper mini dehumidifiers arrive in the market, this little box (2 x 1L milk carton size) is the best alternative. Those $500 monsters from Harvey & friends are too oversized for the job.
I figured that its worth it since I could (1) save on strings (2) preserve my painstakingly autosol polished chrome parts for a longer period of time (3) generally reduce corrosion and maintain resale value.
Btw, I keep my cables and effects inside there as well, keeps the metal from corroding as well. The next thing to do is to find a way to install a hygrometer to make sure the humidity doesn't get too low as it'll affect plastics.