We use Revolution, too. If we go hiking or at the ranch I put a Seresto collar on her. When we are back home I put it in a ziplock bag to use on the next outing. They are expensive but are good for 8 years.
__________________ .   Cali  , and Cali's keeper and staff, Jay No, not a "mini" Yorkie - She loves to motor in her Mini Cooper car  |