Colgate Toothpaste Price How To Increase The Demand Of A Product (lets Say Colgate Toothpaste) With No Effort?

How to increase the demand of a product (lets say Colgate toothpaste) with no effort? - colgate toothpaste price

I was told that this question was asked in the interview that asnwered Colgate and has a good job in this society.
In some ways, the conditions were as follows:
1 - without resorting to advertising
2 - without increasing the power of man
3 - without reducing the price of
4 - No, no, etc. .....