Listing Level Elevations with RevitPythonShell

I recently stumbled apon the Revit APP blog and spotted a simple code listing for getting all level elevations. This should be a no-brainer using the RevitPythonShell (RPS), so I fired up a shell and started typing. This is a session transcript in the shell:

>>>import clr

>>>clr.AddReference('RevitAPI')

>>>import Autodesk.Revit.DB

>>>collector = Autodesk.Revit.DB.FilteredElementCollector(__revit__.ActiveUIDocument.Document)

>>>elems = collector.WhereElementIsNotElementType().OfClass(Autodesk.Revit.DB.Level).ToElements()

>>>for lv in elems:
...    print '%s: %.2f' % (lv.Name, lv.Elevation)
...
Level 1: 0.00
Level 2: 9.84
>>>

I am getting a bit fed up of typing import clr and referencing RevitAPI whenever I use RPS so my next step will be to try and add that by default. I'll keep you posted about that.