I don't use the clumping litter...but I do have one of those stainless steel gizmos that you put olive oil in (or another pure and light oil), pump it up, and spray. They are a lot more durable than they used to be - and they cost about $15.

Might not be a bad idea for the box anyway! Thanks for the tip!

RICHARD - I thought DAWGS had Frito Feet?