As technology advances, file sharing become relatively popular. There might be some client that is looking for one way file sharing solution to allowed their own customer to drop files to their server remotely (be it for printing, proofing, production or other purposes)
Many may uses Firefox Send, WeTransfer, FileTransfer.io, etc, while others will pay for additional solution to have their Google Drive integrated or install some open source File Sharing Server of their own.
For Small and Medium business that have no programming knowledge but wanted to make use of such service, you could utilize Dropbox File Request function. (All you need to do is to own a Dropbox account, if you do not have one, you can click on this link to register for one)
Once done, all you need to do is to navigate to https://www.dropbox.com/requests and create a request folder, you will then be given a URL to share with your friend or customer to have their files dropped into your folder.