I bought some "No Offense" Natural Litter Box Deodorizer at Target last week and it's made with zeolite. I tried sprinkling it over the litter and it did seem to work but of course they want you to do this every time you scoop which I can't do because I have 4 boxes. I'd be going through boxes of this probably every other day. The litter I've been trying also has zeolite in it too and it seemed to work great when it was very fresh.

I now bought some Fresh Step Lavendar scented litter to add to my existing unscented litter to see if this will help a bit. I really don't want to use scented litter but hopefully a little will help do the trick.