Yet, if you are unsure about what it is that you'd like to study, waiting may be the answer. After all, it's a lot tougher to change your major in grad school than it is in undergrad. Chances are that the majority of your life up to this point has been structured by school. You may be feeling ready to break free or you may thrive on this type of structure. If you need a change, grad school does not have to be out of the question.
Many people fall into grad school out of default.
They're not sure what else to do so, they keep going to school. Before letting this happen to you, think about all of your options for after graduation. Write out all of your possibilities and see what you think about each of them and how each one feels. This will help you determine which path to follow. This is a major consideration since undergrad loans and bills are probably still hovering over your head.