Check with the schools you're applying with to see if you need to provide GRE scores with your application. Also check out GRE.org for more info. There are endless options when it comes to grad school. Explore all your options. But still the best way to find out whether a school is right for you is to talk to students and faculty at the school to find out what exactly the program entails.
Unemployment is super low.
Get a job now, make some money, have some fun then go back to grad school later. The grass will seem greener when you visit the other side. Yes, I'm going back to grad school. Except it will have to be somewhere warm. There's too much ice on the ground in Boston right now.