Books are the best weapon in the world.
This room's the greatest arsenal we could have. Arm yourself!
~ Doctor Who
you'd most like not to lose."
There are different setting for a cartridge. One is public so everyone can see it. The other is private so only those with the direct link can see it. The public setting means that your cartridge can be searched for by your caching name or by new cartridges or by area. Most folks keep their cartridge private until after the cache is published.