Every one of us have a tendency to try things which are free, unless they are free we do not like to try new products as we have no understanding of them.
But we tend to use new things when they are given free and would love to give feedback about them to the manufacturer.
Here are some free websites which give you freebies of their new launching products; we get most of the freebies online in Wal-Mart, Kmart, Costco, Gillette etc
Manufacturers provide freebies as they make the product famous and sales increases get feedback, creates a buying habit and etc.