7 No No's

Most of us already know this stuff but it doesn't hurt to refresh.

Smoke detectors have some radiative material in them, and the pig tail florescent lights have mercury in them.

When a house burns down, the smoke detectors burn up too. You can see the environmental problem with radioactive material now laying around.

Live Science: 7 Everyday Toxic Things You Shouldn't Toss in the Trash

Motor oil
Electronics
Paint
Batteries
Light Bulbs
Smoke Detectors
Mercury Thermometers