I've had good luck with shampooing the area with hot, hot water several times, until the pad has been saturated and dried at least 3 times. If the smell doesn't go away when I press my face to it, I then pour vinegar onto the area until the vinegar saturates the area. I let it air dry. Repeat at least once, possibly twice. The smell will generally go away if you are diligent with this. It's a lot of work and a pain in the rump though and your carpet is thoroughly worn down when you're done, but at least it doesn't smell!
Also, I'm proactive these days. Any time I see a pet even looking crosseyed at a particular "spot" I put a plastic table cloth other the area.
Of course, this doesn't help when you've got a very old cat going into kidney failure who pees everywhere, and her pee doesn't smell for a couple of days. I shampoo the parts of the house that are hers every weekend.
For fresh stains that haven't had ANY time to set, I can just blot dry and saturate with enzyme, and I'll never know the smell was there.
I'm going to try that planeturine stuff, Laurie31. Another $25 in my relentless search for smell removal.
