Using the house as a marketing tool is not a new idea, either.

In its time, it was one of the best marketing tools ever.

Actually, on 47th Street, word of mouth is the prime marketing tool.

"So it can be a great marketing tool if done the right way."

Show me your marketing tool to get all the fans back when this is over with.

They often find that house calls are an effective marketing tool.

Or a Christmas party might be a good marketing tool.

It was a powerful marketing tool, as she well knew.

Almost since the beginning, the Cup has been seen as a global marketing tool.

This new series is also a marketing tool, one that takes the process a little further, but not too far.