This arrived in my email and I thought there were some points others could benefit from. Read through and feel free to add your personal advice as a comment.
SAT Subject Tests
by The Princeton Review
If we had to choose an area in admissions where students make the most blunders, it would be the SAT Subject Tests. These one-hour, multiple-choice exams focus on individual subjects and are required at most competitive private universities. They can also be submitted to colleges to show strength in a subject in which your grade may be a little weak. So, what are the five big mistakes that students make?
1. They forget that these exams are part of college admissions. Oops.
2. They don't take them at the right time. When do you actually know U.S. history? Exactly. Take your Subject Tests in May or June, as soon as you’ve completed the class.
3. Students in AP® European History take the Subject Test in world history believing they cover similar content. Not so. The World History Subject Test is Asian-centric, not European-centric.
4. They don’t take advantage of their foreign language skills. If you are fluent in a foreign language, take the Language with Listening Subject Test.
5. They take an AP course and neglect to sit for the corresponding Subject Test. With the exception of AP European History mentioned in #3 above, if you’re getting a good grade on your AP course for a subject, you'll almost certainly nail the Subject Test too. The same company (College Board) owns both the AP and Subject Tests, so there will be some content overlap between the two tests.