This is an idea from Eric Weynand

Dec 5 2008, 7:43 am I would like to see an option to expand or collapse all subscriptions with one click. Sometimes I go through and open a bunch of subscription folders as I'm reading and the only way to collapse them is to go back through and click the box next to each subscription name. It would be much easier to just click "collapse all" once (and that functionality seems to be pretty common across other Google applications and on the web in general). Thanks, Eric

http://groups.google.com/group/google-reader-feedback/browse_thread/thread/23e53ed6b3d7eacc?pli=1

Ok, I have a snippet that collapses the subscriptions on load. Now we just have to make it a button. See etherpad for changes.