Good Post! I was at Costco the other day and bought the Kirkland brand of the Frontline and even though it seems to be working, it does not distribute like the Frontline does. It just sat in a gooey mess on my dog and cat until I brushed them out more. Now I know why it cost less and thank you for letting me know to watch for effectiveness. That is one fluffy butt! I get up every morning looking forward to reading because I know there are many night owls here. Great pics everyone.