Check this out: 
Baking Soda and lemon

          



Baking soda (sodium bicarbonate)
known for its many health benefits.
Excellent for cleaning kitchen and bathroom.

Good for cooking and eliminating odors. 

Relieve heartburn, indigestion, and ulcers.

Good for oral hygiene and bad breath-natural deodorant for those who don't want to use antiperspirants. A simple tip is to brush or rub dry baking soda under your arm. You can also try a pinch of baking soda into water to rinse your mouth cleansing. 

However it is recommended to avoid using baking soda every day( once a week is recommended) for teeth cleaning because of its abrasive properties- which can be detrimental to your enamel.   

Good remedy for sore throat and cough: dissolve one teaspoon of baking soda in 4 cups of water( you can also add a pinch of salt), and gargle your mouth regularly without swallowing the mixture. It will help relieve pain and minimize infections.
Amazing for soothing and exfoliating feet.

Good for hair and sebum removal: spray baking soda and water mixture to dry hair using a squeeze bottle; let it sit for few minutes and rinse it off for good results. 
Useful for minor injuries: insects bites, bee sting, etc....

Lemon
Excellent source of vitamin C.
Heal cuts and bruises.
The pulp is known for its scent in bakeries.
Boost your metabolism: drinking hot or cold water with infused lemon will help boost your metabolism for the day.

The combination of baking soda and lemon:
Detoxifying the body by expelling excess toxin, salt, fats, and water( reducing stress and pressure on the liver and the kidney)   

Balance the measure of potential Hydrogen pH(acidity and alkalinity in the body- alkalinity because of the aqueous solution which neutralizes acid( acid creates an environment for potential diseases). 

Improve digestion

Boost immunity- lemon is known for its antimicrobial functions preventing bacteria from developing in the gut. 

Aid heart health( New researches  indicate that a mixture of lemon and baking soda have the potential to regulate the bad cholesterol and improve the good cholesterol- thus protecting against atherosclerosis responsible for heart conditions) 

Protect the skin- lemon is a powerful antioxidant, which has the potential to protect against free radicals and other stress-related events, thus slowing down the aging process and wrinkles on our skin.    
Heal the liver and prevent chronic diseases