17. Help your plants grow better

Many gardeners swear by adding a simple hydrogen peroxide solution to soil to help deliver oxygen to roots. The solution is as follows: 32 parts of water to one part hydrogen peroxide. 

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18. DIY anti-fungal garden spray

Make the mixture detailed below to help prevent root rot and fungus formation. This treatment can be used in soil or hydro-gardening methods. 

19. Revive old cooking pans

Seriously, hydrogen peroxide can help get you from this to that! Get the full tutorial for this trick here.