In Visual Studio Team Explorer it might be useful to create copies of work items to start with instead from creating a new one from scratch. Especially if you run two parallel systems with similar issues: e.g. a ticketing system for customers and a bug tracking system for the development.
You can by opening the work item in question and then use the Create Copy of Work Item… command in the Edit menu:
or in the context menu of the work item:
After clicking, the Copy Work Item dialog appears and you can determine the team project that you want to copy the work items to.
See further information, especially on the implications of the selected Work item type, here.