Being a manager, I have to send a lot of files to my colleagues and supervisors. Files which take a lot of storage space. This is when Dropbox comes to my rescue. I can send my desired people a Dropbox link through which they can then download the file. This Dropbox link could even be made sure that only relevant people can view or download the information by granting access to only these people ensuring maximum security. Yearly subscription cost is even not much and is totally worth it for my company.