Even though we use our smartphones everyday and know all about there are still few features that are less known to us. Here are some of them you might find interesting.

Apparently, you can apply toothpaste almost to anything and solve a lot of problems while doing your regular domestic chores.

British tobacco company Gallaher’s Cigarettes started to print these useful tips on the cards, put in cigarette packets to keep them from bending, in 1910. They quickly became very popular among people and turned into collectible items.

If you have one of these features in your house, it may be sold faster and for a higher price.

Today's teens won't even know what the half of stuff in these pictures is for.