There are a plenty of things to know and carry for F1 Visa..
F1 Check List
OFC Appointment :
1.Passport
2.DS-160 Confirmation Page
3.Interview Appointment Confirmation Page
VISA Interview :
1.Visa Appointment Letter
2.Passport
3.I20 (Signed and Dated by Student)
4.Axis/Citi Bank Payment Receipt
5.DS 160 Confirmation Report
6.Sevis Fee $200-Receipt
7.Academic
> Degree Certificate/Provisional Certificate/Course Completion Certificate
> Individual Mark's Memo's - Bachelors
> XII and X Memo's
> GRE/TOEFL/GMAT/IELTS Score Card's
8.Finances
> Income Proof
> Savings
> Education Loan Letter
> Other Savings
> Photocopy of Property
> Financial Summary Report(CA/CE Reports)
9.Work Experience Letter (If Any).