Yes, I absolutely carry a potty pad in my purse because you never know where and when you may need that handy little contraption! I carry the normal dog-mom items as well such as poo bags and a travel water dish, but I also have an extra dog sweater or two, an “emergency” baggy of dog food, treats, disinfectant wipes, and a gel-bone which has once been mistaken by someone on the bus for an adult toy when it rolled out of my purse into the aisle.