After watching a video on youtube in chrome, I felt like saving it. I couldn’t find the flv in ~/.cache or in /tmp. So I dug around and found this link: http://superuser.com/questions/235535/in-google-chrome-on-linux-where-is-the-flv-if-not-in-tmp.
The solution by omab worked for me. So I wrote this one line command which would save all the currently playing files in Chrome and Chromium in home directory.
Leave your thoughts in the comments!