How not to write the subject line of an email

If you are sending an email from the online college application system to one of the applicants a few days before the deadline for accepting offers from schools as a reminder to fill out a survey about how awesome the system is, don't put "College Applicant Final Reminder" in the subject line. It may cause the reader to freak out and think that they didn't manage to accept the offer they thought they had over a month ago, and worry that they don't know how to use a computer.