If it doesn't have one yet... EV button would be on top of my list. You can do it for free or a few bucks if you don't have the toggle switch. How about upgrade the Nav to the latest map? I would also look into replacing the shocks and struts to restore the original ride and handling.
I thought about EV, but then I thought It is not a good idea to fully cycle the battery often as this decreases any battery's life? I also thought If I upgraded the Nav I cant get the lockpick (if I decide later) I'll look into the suspension If I need a replacement should I go stock or aftermarket?
