Ok, I am very new here, but am excited to see a lot of topics I am interested. To Paul, I read your article on DE and using it to treat for fleas. I absolutely loved what you wrote and the information you included. Now, I only have a gazillion questions! My biggest question is, how can you tell it's working? Ha. I have carpet and have been spreading it around and letting it sit overnight and then vacuuming frequently, but it seems like I'm just moving them around from room to room. I will dust a room, then go on to the next and they're all over me. I dust that room and go back and then they're all over me again, back in the room I started in. Even after waiting and vacuuming, they just move from one room to the next. I've been bathing my cat (who is an indoor cat, by the way. How we got them, no idea.) and killing tons of them on her, but then she roams around and I'm assuming I didn't get them all or the ones in the carpet are jumping back onto her. Maybe I'm not doing it right? Any sort of advice would be fantastic and greatly appreciated!!