Pack some basics, and things that you can mix and match. You'll also need to consider the weather - you might need lots of warm clothes, or not so many warm clothes. Pack enough undergarments and socks for a week or two, pack several pairs of pants or shorts, pack enough shirts for a few weeks, and then take a few pairs of shoes. You might want to pack a dressy outfit or two as well. You may end up needing more, which you can purchase at your destination or have shipped to you.