We can't think of any more useful tool to have around the house.

Social workers say the money can be one useful tool.

But maybe the truth could be a useful tool, too.

But they say it can put useful tools in the hands of both the public and the industry.

In this sense he is a useful tool of the new world order.

When used as designed this can be a useful tool.

But they are useful tools that could be made more effective through strong American support.

She described them as a useful tool, but not perfect.

That could be a useful tool for students trying to put class notes in order.

"It's the big step we need for going from theory to a useful tool."