Offer Review Suggestions

Hi all, I just finished interviewing for a project finance position and received an offer. I wanted some suggestions as to what I should consider before accepting the offer. The base salary is solid and more than I was expecting to get from a job right out of school (still finishing my last four classes over summer). I currently am planning to ask about parking, whether or not it is provided and if I can get compensated for the costs in some way. But other than that, what else should I consider negotiating into my offer before accepting? I want to make sure I can retain as much of the salary as possible. Appreciate the help.