You compose and send an email to the service, and, depending on the size of the file, it'll show up in your Dropbox folder in short order. Habilis is a free web-based service.

The ability to email files directly to your Dropbox account sounds like a deceptively simple feature, and a quick Google search confirms that it is widely demanded.

Below, we'll detail how to set up a Dropbox clone, complete with instantaneous, encrypted syncs, cloud backups, and file versioning, using cross-platform software GoodSync.