Hot water extraction is the most common and the cheapest method.

If you're in this business, you go after a reasonably cheap, reliable method.

For commercial use a cheaper method starting from acetylene has been used.

Several efforts are under way to try to find cheaper methods.

I was not able to find any "simple" and "cheap" methods.

They provide a cheap method of short-term borrowing for bank customers.

This is still a cheap and effective method for holding the work.

Research identified that retailers were using cheap methods of display which had been around since the 1950's.

It was not long before a cheaper method of making it became possible.

The majority of consumers no longer use travel packages if they have found cheaper methods to go on holiday and see the world.