Congratulations . . . but . . . Your job isn't over!* Once those envelopes roll in - they demand a response. Make a decision. Write every place that offered you a spot on a wait list and/or every place that offered you admissions and remove yourself from each place that isn't getting a yes from you (wait listed/accepted).
* Yep - it is spring . . . my paws simply want to walk in the sand
and I want to soak up the rays. 
However . . . my brain can't stay at its spring break location and neither can yours. There is work to be done. Seniors have to finish the school year in a manner commensurate with the level of performance they had at the time they were conditionally accepted. You read that correctly. All acceptances are conditional - read the fine print. Get in trouble academically or in terms of behavior and you can find your admissions offer rescinded. * Make sure your financial aid/scholarship papers are in order. If there are any last-minute scholarship opportunities out there - jump on them.
* Make sure your housing arrangements and meal plans for the fall are in order.
* Fill out the paperwork to send your final transcript to the college of your choice.
* Need a final transcript for the NCAA or a scholarship program? Your school can't send these if you don't request them.
* Sign up for and attend orientation sessions.
Many colleges now have special programs for accepted students - April events that let you see who else got in and what your classmates might be like (vs. the hoards of students and adults you toured campuses with earlier in the school year). If you can, take advantage of these programs at your top two choices before you have to submit a deposit by May 1. Later, I'll have some suggestions for these accepted student programs from one of my classmates soon.
Remember: you only deposit at once place . . . let me repeat that: you only deposit at one place.
Time for a nap.
Woof,
Clyde
