It’s not passive-aggressive to copy and paste this on your roommate’s Facebook wall, I promise.
Wash dishes without a dishwasher.
A few bubbles of soap and lukewarm water doesn't cut it. You'll end up with grease on your "clean" dishes. There's an art to it, and it requires EXTREMELY hot water, elbow grease, and a little organization. Get the step-by-step here.
Scrub the grime off of your stovetop.
See that? Your stove may even lift up for easy cleaning. Directions here.
De-gunk the inside of your oven.
You'll have to use some ammonia, but it'll get it done right. How-to here.