How can i get whiter teeth at home?

ok so i want to get whiter teeth. but i dont want to go out and buy the strips.... what ways can i whiten my teeth.. in-depth please?
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this may be dangerous but it works jus dont swallow. brush teeth with proxiode works for me. if ure gumms are week it will bleen and ure gumm will start to foam up dont worry thats jus germs dying. or jus brush teeth with baking soda. if not that jus brush teeth with whiter toothpaste that says colgate whitening
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