Can't undo in Maya

The Issue:

// Error: line 1: The undo queue is turned off.

:(

The Fix:

In script editor, on a python tab, run:

cmds.undoInfo(state=True)

:)

Cool Maya Time Slider Preference!

 I discovered a new time slider preference today that blew my mind slightly;

'Snap to whole frames'.

When you turn this off, as you scrub through the time slider you are able to see how your frames interpolate from one, to the other. Particularly useful if you're trying to debug euler/gimbal issues!