I really wish WebDAV were more popular --- ages ago, back when moving large files was difficult and I worked at a printing company we would have regular difficulties with customers connecting to our FTP site (on at least one occasion resulting in tears of frustration on the part of a customer).

I (stupidly) pointed out that WebDAV was natively supported by both Windows and Mac OS and was quite simple to connect to, and then burned all of my political capital at the company arguing for its adoption --- when we finally got to a meeting on it, rather than simply enable the WebDAV service on the existing FTP Server, it was presented as if I was arguing for a new server, and that said new server should come out of my department's budget....