Im not  trust the Thirsty Hippo.. i have experienced use it 2 years ago and use for 2 times only, the water inside the hippo is unrealistic water level..       after that i changed to blue silica gel.. even after i bought the dry box, i still use this silica until now.. i put inside my dry box and my camera bag. i can reuse the silica by 'goreng' using kuali..

for question abt 'is there a safe way to store a camera in your car all the time'.. i think the safe way is by put your camera in a chrome plastic bag (if u buy HDD/3D card, they use this plastic to protect the item). i dont know how to explain this plastic, hope someone can explain better than me..

for those looking for blue silica gel, u can find in lelong. http://www.lelong.com.my/blue-silica-gel-drying-agent-dehumidifier-dry-box-61947265-2010-06-Sale-P.htm