Have you guys seen the 'portapotty' thingys? I told my husband that someone needed to invent a litter box with grass, and lo and behold, someone already has!
  http://www.petapotty.com/home.html 
It's kinda expensive. I think I could find a wooden crate, fill it with sod and put a puppy pad under it for urine.  It would be nice to have something to use indoors when it's cold & rainy outside.  
