There is still no good way to opt out of autosave/versions and use the standard Save As functionality that worked great all the way through Snow Leopard.
Finder windows routinely forget what view state they are in, and switch from icons to list, or start showing the toolbar which had been hidden, for no apparent reason after restarting or waking from sleep.
Yup, those two frustrate me too, along with the system sometimes deciding to reload all my apps after a reboot despite deselecting the option to do so.