Here are a few things to do while waiting for your college acceptance...
Keep up with your courses. This is not the time for SENIORITIS. Colleges receive your final transcripts. It is important that you maintain your grades, activities; keep up your overall dedication.
Get your finances in order. Consider applying for scholarships, make sure FAFSA is complete since schools look to that information for need based but also some merit based awards.
Contact but don’t overwhelm your top schools. You may find contradictory information on this topic; however, my recommendation is to follow up with your top schools (via email is best). Start a thoughtful conversation with the regional admissions rep. Ask questions about the school, or send an updated activities list or even an extra letter of recommendation. Don’t overwhelm them with tedious questions. For most institutions, you can track your application online, but do share with them your genuine interest.