Using home remedies for dark spots is easy. There are several remedies you can use like lemon, aloe Vera gel, honey, soda etc. I think the ones that work best are the ones which work with the mechanism of exfoliating and moisturizing. I think this is the best way to clear spots and achieve an even skin.
While trying to exfoliate, there are many exfoliating agents you can add to your mixture like, sugar, baking soda, citrus zest etc. A good remedy is that of honey and cinnamon. Add two parts fresh honey, one part cinnamon and one part baking soda. Honey is an excellent moisturizer and an antibacterial and antifungal. Cinnamon clears pimples and acne giving you a softer smoother skin while baking soda is the exfoliating agent.
This recipe gives you a clearer, smother and even face free of spots. Wash you face, apply, leave for twenty minutes and then wash off. Follow up with a good natural based moisturizer. Do this about three times a week.