for the sake of not having to store a 2'x2'x4'ish pet carrier, per pet (facing the fact that they don't get along that well to be couped up in the same carrier LOL!)... is there some kind of Pet Carriers https://petapproves.com/best-dog-backpack-carrier/ meant just for emergencies? Guess I could purchase some collapsible duffle-bag carriers if I have to