[keone]

I'm not aware of any sort of default preference, but what I do before I shut down OF for the day is select any one item in the left sidebar, then go to the menu and select View>Collapse All. I also do this for the right panel.

Not the cleanest solution, perhaps--I agree that a default pref option would be nice--but it works for me.

P.S. After I posted this I thought of another quicker way: Create a "Close" perspective. One click before closing OF and it's done. In fact, I'm going to create that perspective for myself right now.

P.P.S. I just finished creating the new perspective, which I named "Shut-down." I set both panels as described in my original post, added the new perspective, named it, selected an image for it, went to Customize Toolbar and dragged that image to my toolbar, and then tested it. Works great!