The more I work, the smaller I grow-Riddle

Riddle 
Jaikaal and Riya went out for dinner for the first time. To break the ice, Jaikaal asks Riya, I help you from your head to your toe. The more I work, the smaller I grow. What am I?
What do you think is the answer?

    A bar of soap!

Mindyourlogic Riddle: Answer:
The more I work, the smaller I grow-Riddle