Hi Dave,
By default, it's Ctrl+Shift+C to copy the format at the highlight, and
Ctrl+Shift+V to paste that format at another location. Think "copy" (Ctrl+C)
and "paste" (Ctrl+V) with Shift to denote "formatting".
In the Tools > Customize and Tools > Customize > Keyboard dialogs, these are
listed under All Commands as CopyFormat and PasteFormat, respectively.