You've definitely used dry-erase markers to mark up a whiteboard in a classroom or at the office—they’re so ubiquitous, ...

The EXPO Low Odor Dry Erase ... eye but also easy to erase. This is especially beneficial in learning or working environments where information changes constantly and the whiteboard needs to ...

But a dry erase marker won’t turn any heads. And this one holds its own little secret. It acts as a master key for hotel room door locks. This is really more of a repackaging hack. The exploit ...