"Nature's Miracle" is great. You can also leave a dish of vinegar near the cat box. It helps absorb the odors. When I scoop out the litter box (daily) I put the "refuse" into an empty coffee can. No odors.
I wanted to thank you for this post. I had never heard of Crafthope. I made 50 washrags. It has ended now. They received way over 65,000 rags. I'm sure you were responsible for many other readers here sending them in. CH is a great org. and I wouldn't have known about if not for your post. Thank you.