Carrier Bags

Some of you may know that we were planning on having Lacey boarded and many of you gave us great feedback.Some advice we did take on looking for specifics in boarding places vs the vet's boarding. We decided to bring her with us to the big island.The airlines we will be going with is pet friendly <20 pounds. We have got a pet carrier for her,portable water bottle,treats,dry food, waste bags,bringing her bowls,her favorite stuffed animal.We're getting her distemper done & we'll get her health certificate from her dr. Is there anything else we're missing?How has some of you trained your dog to be in the carrier?Thanks for your help in advance! I forgot to mention that we were already planning to bring puppy pads along. I wasn't familiar with the HI quarantine laws.Thank you for the link Also the airlines we will be going with Hwn Airlines said that she doesn't need a health certificate from her vet.She should be under 20 pounds in weight + crate and should follow the dimensions of 9.5" H X 10" W X 16" L.They told us that she will be a carry on and will be booked with myself with my parents on the same flight.They told us nothing about the HI Animal Quarantine laws.