I call myself an atheist mainly for the fact that society has labels for everything. Not giving a label is impossible for some people. Some people just cannot wrap their minds around the fact that not every label describes every person. For myself, the only creator I believe in are my parents for they created and gave birth to me. That's not to say that that should be taken religiously. No, that doesn't necessarily mean that my parents are "greater beings". I mean it as literally as possible - that they created me, hence a creator. That also shouldn't be taken in any other way. I'm not mocking religion, simply stating my definition on creator.
I believe that our world as we know it today we created by a series of events which may have caused the universe to explode into what it is today. Even that is mind boggling in itself, and it is understood why some may not be able to wrap their minds around that concept, either. That's one reason I believe religion is as strong as it is for some people. But, I try to keep my mind open to the possibility of things such as this. I don't believe that some spirit just formed and decided to create our world. In that sense, you may say that I cannot wrap my head around that. In reality, it goes both ways. But I do not see any reason to believe in concepts such as that. I feel I should not limit myself to one thing, one belief. It doesn't mean I'm right or wrong. It just makes my opinion.
Therefore, I do not attend a place of worship. I do not worship any greater being (though I should worship my parents. They brought me into this world! you know how the saying goes lol) and I'm okay with that. It doesn't make me religious, but it doesn't make me anti-religious, either, as I am certainly open and understanding of those who do choose to believe. So, whether some label me as atheist or not, I believe that I'm just simply me. Someone who believes in a concept other than religion, and that's okay.