We have a bad tendency to think that every book we write has to be earth-shattering in some way. It has to have a larger-than-life character, or an intricate plot, or a bizarrely unusual world. But sometimes it's the simplest things that make a book memorable.
You may have already seen this commercial, but it's a perfect example of what I'm saying. When I first saw it, it simply blew me away:
This is a 12-year-old from London named Nathan. You can't get much simpler or commonplace than this, and yet it's hard not to be reached on a whole lot of different levels by this.
Remember that next time you're afraid your story isn't special enough.