If your favorite spice is salt, you're lame.
Curry powder is a staple in Indian cooking, and can bring so much warmth and dimension to all kinds of dishes, particularly legumes and tofu dishes.
Crushed Red Pepper
Everybody knows what this stuff is. Sure, you can limit your contact with crushed red pepper to those chubby spice shakers at mediocre Italian restaurants, or you could throw these babies into literally any dish. Bring heat to your meals consistently for a sped up metabolism.