Hi Kara,We just came back from a trip, so I should know some stuff! I had a check off sheet of stuff to bring. We did not fly, car trip for 8 hours. I would always have water and a dish, (Casper likes to drink from his frisbee). Treats to feed, we have some Innova baked treats we call cookies. When we got to a strange place Casper was nervous, so I pulled out his favorite stuffed baby and a fossil and he settled right in. We never go out without our poo kit-we have a small squirt bottle and doggie wipes. An extra leash is good idea. I always take his anxiety medicine, don't usually give it to him, he always surprises me with his good behavior.
Watch what Gucci eats, no unknown treats. They seem to get a upset stomach traveling so stay with feeding what you know works.
Check out this picture of this doggyride we took it with us, can hook on the back of your bikes or you can use it has a stroller.
If you have not had Gucci in a carry bag, you should let her get use to it before the trip. I take Casper in one everywhere, so he is really good in the bag. We did use it this trip in some of the stores we went into my husband was surprised at how good he was in the bag.
I hope you guys have a great vacation, take lots of pictures