Using your DropBox
Your DropBox enables others to place files that you (and only you) can access. For instance, if there is a SHAREspray user to whom you want to send a file, you can navigate to their DropBox (a folder with their SHAREspray user name on it located in the DropBoxes folder) and drag and drop it from your Mac. If someone has sent you a file you can find it in your personal DropBox and do whatever you want with it. You can also do this from the web-based file manager.