[Too]

I always find it very hard to draw, and erase, tiny details on whiteboards. It's like the pen has to be drawn in a certain direction and you can't overlap lines without smudging them. Also the pens are always very thick. I can't imagine drawing with a whiteboard pen on something so small.

[charleslmunger]

Get a fine point whiteboard marker, I bought a pack for interviews and loved them.