Suggestion 1:
Transform your macro into an "AddIn" so that it's available to all workbooks all the time. (tecniques to make addin's are been discussed many times here so just do a search to learn how to do)
Suggestion 2:
Just have your source book open each time you want to work on a new SS and run it from the old book.
Suggestion 3:
To copy macro just Open the VBEditor window using Alt + F11 and drag the module with the macro in it from one workbook to the other in the "Project Window".