The following video clip will help you understand that how you can use Dropbox to share your files and access them from anywhere whenever required.
Image Credit : Dropbox
Those people who don't know about it so here is the short description - Dropbox is only file storage and syncing service that enables users to store and share files and folders on the Windows, Mac and Linux computers. It has various mobile apps for Aplle's iPhones/iPads, Windows Mobile and Android Gadgets.
Video Credit : Dropbox
Hope the video helped you in learning the way to use Dropbox.