Did you go straight to grad school?
No I didn't, but I'm going back for January 17. I just got accepted into Fordham and Howard, so I'm trying to chose.
I personally have regrets about not going to graduate school after undergrad. I had to work and it wasn't feesible at the time, so instead of being 25 with a master's degree, I'll probably be 29 with the degree. Those four years with the master's degree could've made me move quicker up the ladder. That's why I would recommend you go to graduate school now, especially since you have no debt.