Follow-up on authors doing research that is of interest to you. Take your GREs now, even if you are not interested in grad school. You will do better with the topics fresh in your mind. This is especially true for subject GREs. Plan on being financially supported in grad school.
Most programs offer teaching and research assistantships and waive tuition fees.
Many require that you have financial support before they officially admit you. If you are expected to support yourself, look elsewhere. This compact guide and free CD-ROM will help you research more than 6,700 programs available in those fields at accredited universities. Profiles include details on enrollment, faculty, computer and library facilities, and tuition. Also included is guidance on how to apply to, fund, and succeed in grad school.