Testing & Publishing
Workspaces
The usage of workspaces for implementing changes (especially when there are more than one party working in the container) is highly encouraged.
Failure to use workspaces can result in unpublished tags being sent live by someone working in the default workspace.
Testing
The use of Preview Mode and Google Tag Assistant is encouraged instead of pushing live and testing on production.
Version Names/Descriptions
Every change to a container should have a version name and description. If using a shared login to make the edits, leave your name or email in the version description.