nyc: Hi! I have an 18-lb French Bulldog who fits nicely in a Sherpa duffel bag. We will need to travel between NYC and Boston around the holiday. I have kind of a tight budget... renting a car is pretty steep. Any other ideas? Thanks!|||Amtrak and bus companies won't let you bring your dog with you on board. And, if they catch you smuggling your dog on board, they'll kick you off. However, local train services might let you take your dog and you would have to call them to find out. Otherwise, you're left with two options: drive or fly. If these options are too expensive, the only alternative is to board the dog while you're gone or have someone stay at your house to take care of him. And, the cost of boarding the dog every day is probably more than the daily cost of renting a car.