I mentioned it in the written review above, but it bears repeating here - you can thank Chad Doane for this review.  I read in his recent " What's on Their Desk " interview at Office Supply Geek that his daily arsenal consists of the Sharpie Ultra Fine Permanent M
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FLUORESCENT (which show up under black light but otherwise. Always replace the lid after each use. Be aware that there is a limited amount of ink, so
1x Sharpie Permanent Pen FINE/ULTRA FINE/BROAD/FLUORESCENT/MINI/TWIN END - 100+
10 Best Permanent Markers Review - The Jerusalem Post
SHARPIE 37003 Ultra-Fine Permanent Marker, Marks on
pen reviews – Pens and Junk
pen reviews – Pens and Junk
Predict-the-Happiness-HackerEarth-Challenge/dictionary.json at
Sharpie ultra fine point permanent markers brown color / 5 Pcs. of Set
pen reviews – Pens and Junk
SHARPIE Permanent Markers, Ultra Fine Point
Stainless Steel Sharpie's Review for EDC (Every Day Carry)