Been proved wrong
This post presents another game I played recently, but now it will have a little background story.
In a recent post, I questioned the usefulness of spending time learning opening lines at my level, where most of my opponents don't follow mainlines and the game is often out-of-book by move three.
In the last few games I've played, I've encountered the Italian game. Since I had never studied the opening, I just played to develop, accidentally reaching the Two Knights defense, and then losing the game quickly.
I got tired of this, and looked up the Italian Game and found the Giouco Piano as a response. This bring me to this game, where this preparation (that, to be honest, wasn't very thorough) actually did put me in a good position.
I will now lookup the 2.Bc4 Sicilian, which has been giving me trouble lately.