All of my documents, my spreadsheets, email, chat, and video calling is all done from my browser. I keep Emacs open for scratch just because I can't quit Emacs and I have a terminal open to run some servers. And this has been my working model for at least the last five to six years.
What's remarkable about it is that web apps are doing almost all of the heavy lifting of my work every day. I thought this was worth noting in the context of your comment that web technology is not suitable for making applications.