Article: If it hasn't been made clear already, you cannot successfully prepare for the ACT the night (or even week) before. If you have been preparing long and hard, resist the urge to do a final cram the night before.  You're more likely to fry your brain and hurt your results on test day.  Trust your preparation over the long term. Yes, the test is important for your future, but try not to obsess over it.  Stimulate your mind and body to keep both sharp for test day and to take a breather from test preparation.  Exercise is good for the body and mind, and thus a beneficial distraction.  It will help keep you energized as your approach test day. It is not a waste of brainpower to think about or work on non-ACT ideas or projects.  Indeed, they will help keep your mind stimulated and ready for action on test day. Good nutrition and sufficient sleep during preparation and leading up to test day will benefit you far more than sacrificing one or both in the name of a little more study time. Know where you need to be, when you need to be there,  and what you need to bring (ID, pencils, approved calculator, etc.) well beforehand. For more detailed information on preparation just before test day and strategies for test day itself, see How to Ace the ACT.
What is a summary of what this article is about?
Don't try to cram. Keep yourself occupied. Eat and sleep. Be ready to roll on test day.