Testing knowledge base

Today, my team and I had Study Group as usually every Wednesday and we were talking about metrics.

You know, there are a lot of metrics that can be used in every project but it didn't used.

Most interesting thing: I did a small survey among my team's member about what metrics did they use and how was it used by them and project team.

Details of survey:
1. Didn't use - 50%
2. Used but there was not significant value from this (ISO methodology were used) - 37.5%
3. Used and it gave real value to the project. - 12.5% 

Amount of people that were take into consideration during survey: 8

So, what does it mean? Many people don't understand what metrics are and how it should be used!

How do you use metrics in your project?