Volvo Repair: Dead Battery, volvo 850, car pool

Question
Since I car pool, I drive my car one week each month. Normally it sits in the garage for 3 weeks. During that time I might use it once in a while. The battery is only 3 months old. Now when it is my turn to drive I have to jump start it. Something appears to be draining the battery or the alt is not recharging it. Someone told me to check the fuse. Is there a fuse that connects to the battery? What could be the problem?
96 Volvo 850 GL

Answer
  There is no fuse. The problem is not driving it. All those fancy electronics have "keep alive" power. Also, when you do drive it. You may not be driving it long enough to fully recharge the battery after a jump start. the only other possibility is you have a bad/misadjusted glove box switch.

Mark