Get to know the Financial Aid and Scholarship sections of university websites to learn which forms are required to apply for financial aid, and use tools such as Financial Aid Deadline organizational worksheets found on the College Admission Book website to keep track. Admissions deadline worksheets are available, too.
The Common Application is what the majority of private universities use as their application. On their website, you view the member schools, and more importantly, a detailed list of application requirements for every member of the Common Application. This includes deadlines, application fees, how many teacher evaluations are required, minimum test requirements, and if the application includes a writing supplement (most do).