1.   Exercise is a valuable tool in treating depression.

2.   Precedents are a valuable tool for the drafter.

3.   Big business, however, sees the Olympics as a valuable marketing tool, regardless of location.

4.   Additionally, the game was broadcast regionally by ABC, which is significant because television has become such a valuable recruiting tool.

5.   But despite their languid development, biotech companies look to provide valuable tools to some large, lucrative markets.

6.   But even a last-minute gift can be used as a valuable tool for asset preservation.

7.   But instead of using the documents to wage a new offensive against Fidel Castro, the organization sees them as a valuable tool in its architectural preservation drive.

8.   But in the process, the bank deprived itself of its most valuable tool, the ability to use interest rates to influence the economy.

9.   But it has been normal legal practice in Italy and became a valuable tool for preventing suspects in the political corruption scandal from covering their tracks.

10.   But like other programs designed to test a network for weaknesses, Crack is also a valuable tool for corporate spies and renegade hackers.