Motion sickness....HELP!?

Okay so I am going to Busch Garden's on Saturday with my best friend! I am so excited. I will not be staying up late...or anything that will make me tired. But I am afraid I will get sick, and I really do not want to. One time I threw up in the car with my other friend...and she wouldn't let it go. She was helpful, but afterwards she wouldn't stop talking about it. And it hurt my feelings. I don't think that this friend will do this, but I still do not want to. I think I will be sitting in the front seat, not the back. So that will help a little bit. But I am still kind of upset that I might get sick. I know that she would be very supportive, she is a great friend. I can really depend on her. But I just do not want to ruin my day by throwing up in the car, or even having to pull over. I want to get to Busch Garden's as quickly as possible, so I don't want to pull over. But I will if I have to. But I was wondering if you know anything that might help me in the morning before I get in the car....or if my stomach starts to hurt in the car? Some of it is migraines as well. I already know deep breaths, Pepto, Tylenol. But is there anything else. And I will not be looking out the window. I will have my I-Pod so I will have something to focus on. Plus I will have my friend that I can talk to when I have to get my mind off my head, and/or stomach. And I will bring the medicine (pepto, tylenol, IBprofin) So I will have those with me...but is there anything else. Other stuff that you think could help me, or remedies, or anything to that effect? Please help! I am going this Saturday people! PLEASE!!!