When a 0.5mm or 0.7mm lead is not enough, try out the Worther Shorty mechanical pencil which sports a substantial 3mm super-soft 7B lead (other lead grades are available, of course). $15 (via Hand-Eye Supply)  

I decided to try out the Kuretake Dry Erase Liquid Post Chalk Marker Pen at work to cut down on the dust and mess of traditional chalk in my already dusty cubicle at work. I have a lovely chalkboard message board handpainted by Mary Kate McDevitt which was the perfect testing ground. (via me on…