Thanks for all the responses. I still can't decide what to do. Hadley really doesn't go out right now much as he uses puppy pads in the garage but as warm weather approaches he will. I am debating on Sentinel ( friend uses that on her Yorkie) but Ive heard it doesn't always work for the fleas but is also treats worms and parasites, or using Frontline spray so I can decide on how much, its not greasy either. So many decisions. Just want to make sure he is flea, tick and parasite free with using as few chemicals as possible.