Did you know you can import dwg files into Revit using drag and drop from Windows Explorer? After some questions from Revit Landscape Maestro Åge Langedrag I had to go on and read the Revit Architecture User's Guide, and there on page 1387 it says:
"In addition to using the Import CAD and Link CAD tools, you can import CAD files using drag-and-drop from Windows® Explorer onto a model, drafting, or sheet view of Revit Architecture."