Lemon is used to spice up the life, be it your food, salad or Drink lemon cake change the taste for better. but there are many other uses of lemon other then spicing up the food.
Hair and lemon:
lemon mixed with any oil can be used to give a new life to hair, it can work wonders to hair but if kept for long it can create dryness. make sure to wash your hair with conditioner after use.
metals and lemon:
Take a lemon and rub it on any metal including but not limited to silver and chrome and get the orignal shine right away, you might need to rub a little harder but it really is a nice way to get back the shine of those metals.