They write much smaller than a marker ... dry out (obviously), and while we don't know how long they last yet, we do know that a couple of days on the board doesn't make them any harder to erase ...

dry-erase markers. Some insist that their preferred ... Chalk, however, can be a very low-waste product, especially if you use a chalk holder that allows you to use the sticks until the bitter ...

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 ...