I tend to be of the mindset that in order to be pleasing to God, I have to do something big, something that leaves an evident footprint in the world. I think deep down I know this isn’t a true philosophy, but when I just live everyday life, I feel useless.
I feel exactly that way. Check out this great post from my friend Sizzledowski.
This Journey Is My Own 
I like this and it can be applied to a life for God I think:
Cautious, careful people, always casting about to preserve their reputation and social standing, never can bring about reform. Those who are really in earnest must be willing to be anything or nothing in the world’s estimation, and publicly and privately, in season and out, avow their sympathy with despised and persecuted ideas and their advocates, and bear the consequences. ~Susan B. Anthony
Definitely applicable.