That was me when I was, like, 15. I was between the "two sides". The Republicans I was surrounded by were nutzo, but I didn't know anyone more left, other than my parents who "didn't talk politics" (but generally were ok with the queers and not-whites in a nonspecific way). I toyed with the idea of anarchism because I hated being told what to do, settled on the label "fiscally conservative, socially liberal" with the asterisk that social programs tended to be cheaper solutions to issues than Republican. This all would have been around the hanging chad controversy. I think that's when I first noticed national politics.
Then I went off to college and my horizons expanded.
I was just think that. Keeping a more-full fridge is more efficient because when you open it there's less cold air to fall out. (I'm really putting my college-level thermodynamics classes to good use...)