For starting a campfire, chips, which we like to eat, will help more than a dedicated kindling liquid. It can light even wet wood.
If you apply toothpaste on the burned skin, the pain will subside.
For cakes and sweet cookies, if you don't have eggs, you can substitute them with bananas. Half a banana is equal to one egg.
To cook potatoes faster, add a little oil to the boiling water.
A pinch of sugar is added to make the milk froth faster.
When grating the cheese, coat the grater with vegetable oil.