PetSmart.com drops the price of the Advantage II Cat 6-Pack from $70.99 to $48.79 plus free shipping. You put this stuff on your feline once a month for flea prevention and treatment. This is a really good price, believe me, I have been buying this stuff for our cat for a couple years. Our cat loves to go outside during the day, so if we didn't treat her our home would have 3,556 pet fleas by now. My 2 girls would then try to name all of the fleas and want to keep them as pets which would be a real pain in the ass for this Dad. So thank you Advantage for making such a great product and helping me avoid numerous headaches.