Don't kill me for saying it (I know it doesn't help you now) but having worked in terminals for far too long I never use the little boxes but put any loose items in my bag. Of course, I carry a bag, some people don't.
Yeah, same here. My laptop goes in the tray then all my loose crap goes in the laptop bag. I didn't even do that for security reasons, it's just easier only having to put the bag and the laptop through the machine, now I'll be sure to always do it that way.
Good luck with your inquiries WOG.