Please, please, please, add a pet fee option to the booking. There is a button to indicate someone is coming with pets, why can't that be tied to a nightly or per stay pet fee? I prefer per stay, but nightly would be fine too. I see constant updates to the app and site, please try to work this in to the next update. Every 1 out of 3 guests comes with a pet, and I have to way to recoup the cost of the extra cleaning.