Removing permanent marker stain from plastic is easier than you might think. For most plastics, especially hard plastics, you can simply draw over the permanent marker with a dry erase marker and ...

Of course, one infamous use for dry-erase markers is removing marks made with permenant markers. This will work on just about any surface that a dry-erase marker would normally work on—that is ...

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 ...