I often print out my D&D maps (say, from a scan of one I've drawn), transcribe important features on to it using coloured pens and run the game from that. White

I often print out my D&D maps (say, from a scan of one I've drawn), transcribe important features on to it using coloured pens and run the game from that. Whitespace and simplicity is a feature here... "photo-realistic" maps with stone textures and artistic doodles get in the way of usability.