Manipulating spatial data and visual variables, such as colour and spacing, tend to take up most of my time when I make a map. But increasingly I've been exploring typeface and using type to convey more information about the data or map that you are creating. Traditional cartography uses italics to name natural features such as rivers while man made features are in normal font.
This video talks about the use of typeface to convey messages in logos and signage. Presented from a design perspective, it should spark some cartographic ideas...