<p>My kids have studied abroad. One of the most important things is to pack light. You want to fit in with the other students at your destination. And unless you go to a very poor country, you will be able to buy toothpaste, deodorant etc everywhere. Why not try a local brand that is new to you? After all, this is what studying abroad is all about: experience new things.
I certainly would not pack bed sheets and linen. They are inexpensive and some countries have sizes which differ from US.
Make sure your clothes and equipment are also common in the countries you will be living in. In some countries adults do not carry day packs on their back. And, more important, shorts are not usually worn unless you go to the beach.
Save your money and buy things when you get there. It is fun, you can learn the names of the objects you buy and get to know local customs. It will be easy to find young people who can help you do these things.</p>