The fogginess on your windshield is from condensation of moisture - leave some silica gel packets in the glove compartment to absorb the moisture, leaving your windshield clear.
5. Prevent condensation on camera lenses
Put a packet or two in your lens case to keep it clear.
6. Extend the life of photography equipment
A few packets in the camera case will prevent internal rusting and keep your equipment in running order.
