Speaking of console arrangement... that reminds me of something I've been wishing for, although it's rather elaborate and a little hard to explain. I'm working on code where groups of console log items appear in clumps, separated by time, depending on various actions. In other words: something happens, 6 or 8 console items appear; 10 seconds later, another page action, 10 more console items appear, etc.
Right now there's no separation between the groups of items in the console. They're not the kind of thing you could easily clump into console.group because they come from various parts of the code (not all together in the code).
It would be nice if you could set an amount of time (a time gap) that would cause a separator to automatically appear in the console, like a horizontal line, so you could see where one bunch of items stopped and the next began. Even better would be some way to automatically group them (something like console.groupCollapsed) as soon as the next bunch of items appeared.