In the US, simply saying "I hereby dedicate this work to the public domain." is as an effective, if not more effective, way to do that as any license. These lic

In the US, simply saying "I hereby dedicate this work to the public domain." is as an effective, if not more effective, way to do that as any license. These licenses are just for countries like Germany that basically make it illegal to sell, gift, or release a copyright at all.