Re: I carry a whole bag in winter
>I think the smart thing to do here is, if you're going to keep kitty litter in your car, keep it in the bag it came in.
[Can't tell if serious!]
The bag that kitty litter is shipped in is designed to keep moisture out. The litter won't work unless it is exposed to the damp environment.
Some folk place trays of kitty litter around the interior of caravans that they won't be using for a while - again, to keep dampness at bay. The litter can be reused byheating it gently in an oven to remove the water it has previously absorbed.