Press + Drag

Do you ever accidentally drag a wall or other model object across the screen when you didn't intend to move it? That's probably because the Press + Drag option is checked in your options bar.

It might be nice if Revit would let you pick and choose which model and annotation objects can be moved with the Press + Drag option. I usually keep this checked for moving furniture, fixtures, and especially annotations but I do once in a while accidently drag walls or other model objects resulting in numberous warning messages.