Is it possible to make every activity constructive?

Perhaps, if we document our observations, thoughts, feelings and, of course, what we are doing. For example, I was reading recently about new ways of using digital cameras. Documenting these findings links them together for other people to find out the same information.

The cameras were:
The Triops
The chopper cam
The crow cam
And some fibre optic camera that allowed you to look through small holes (I've lost the link though!)