People say college years are the best years of your life. Well, I disagree. Don't get me wrong, I had an absolute blast at San Diego State. Where I reject the statement is where I find that replicating, and even better, building and improving on those years should be a natural transition.
Take the average day from your senior year: You wake up sometime in the late morning, go to class for a few hours, do homework and study for an hour, go to an internship for another three or four hours, go to the gym, then go out for the whole night. Clearly this is a great lifestyle, so how can another one be any better? One factor: money. You didn't have any in college, and when you did you spent it all. I made a ton working at my summer jobs, but that was a finite sum that never got any larger. Imagine if you had post-grad money while you were still in school. That's ballin'.
How do you get post-grad money? A post-grad job. What does a post-grad job require? Post-grad time. Where do you get the post-grad time for a post-grad job? By using the hours you now have available because you no longer have to go to class, study, do homework or go to an internship. Do you see how I simply replaced work with work, and nothing else changed?
If you went to school to learn how to do something you like to do, then you're going to spend the majority of the day doing something you enjoy. Simple, right? So, now your schedule looks like this: wake up early to mid-morning, go do something you enjoy (work), then go out all night.
The one key factor that must be considered in this equation is friends. You were surrounded by them in school, but being around them now can be another story. Many people stay near where they graduated, and mostly everyone else returns home. So, go where your friends are. It'll be better than college--it'll be college with money in your pocket.