Keep your wealthy travel clients, but sell them personal services instead of trips to Europe.

From its Web site, the service sells the pilot-factory document and many others to the public.

The service will also sell leads back to the providers at $20 each.

Since the introduction of the Xbox 360 last year, the service has also sold simple video games and other material.

By producing more goods and services to sell, they have taken the pressure off their employers to raise prices.

In the first week after it opened, in late April, the service sold a million music tracks.

And you need to understand these things in order to find out if your product or service will sell.

If you add products or services to sell, the sum total might just be big profits.

In just its first month of operation the service, by the company's estimate, has sold three million songs online, at 99 cents each.

In just over a month, the service has sold more than 3 million tracks, far exceeding the record industry's expectations.