What are some ways you can get that "Spark" back in your relationship?

My boyfriend & I have been together for over 2 years. I love him so much & he loves me. I watched a really cute, young romantic movie today. I watched these 2 young lovers meeting for the first time & having that first awkward conversation. I could see how they felt by the nervous smiles on their faces & I remember feeling that same way & smiling at a guy I had mixed emotions about.

I want to feel the butterflies again. I want to have that "thing" back. We've been together for so long that we've just gotten so comfortable with one another. Is this bad? How do I get the spark back in our relationship?