Depends on the type of airport u use whether its delta, southwestern, etc. When i went to dc with friends, we took delta. They said u can bring deoderant, soap, etc. (no liquids) if the container is 3 oz or less and they all have to be in a quart sized zip lock bag. Laptops, ipod
s, and books are all allowed on a plane. I brought my ipod with me. I dont know why shes bringing her laptop since u cant use it on a plane because you cant use wifi or the internet and its easy to get stollen. I think contacts are allowed. Stuffed animals and coloring books are allowed. Vitamins, i'm not sure. I brought hard candy on the plane to prevent ear popping, but I also had to put it in a quart sized ziplock baggie, so if i were u, I would probably leave the vitamins at home, but if you want to bring them, put them in a quart sized ziplock baggie also. Glass cleaners are allowed just as long as they aren't liquid.
No liquids what so ever are allowed on a plane, even if its water thats inside a snow globe.
And then the regular rules like no knifes, guns, or yelling bomb on a plane, etc.
Hope this helps and have a nice vacation