Determine whether you want to keep documents at the task level or the project level as an organizational decision to make it easier for all of your users to find documents and know where to look no matter what project or team they might be working with. An additional tip that will really make this successful is to determine where you will store documents in your governance committee (or whatever the equivalent is in your organization). Generally storing documents at the project level make them easier to find later, rather than at the task level.
