Have you all read that? (sorry if this has been posted. I tried to do a search, but the search function malfunctioned and I wasn't able to pull anything up. Please excuse if this is a repeat) Basically, it suggests that if you leave the puppy alone in the house during the day to get an ex pen (which I have), a crate that fits the puppy (which I have) some toys and some food (also which I have) etc. My question is that it also suggests putting a potty area in the ex pen for the puppy to use for elimination. I was thinking about putting some grass in a cat box so that she could use the bathroom and get used to having grass under her feet. Have any of you used this method? If so, did it work? What issues did you have with it?