One of the pop psychology books on my shelf highlighted that your current self (ie. your brain today) does not regard your future self as being the same person. Quite literally, the person you are today does not have any love or consideration for the person you will be tomorrow. This is why people stay up too late, spend too much money before some big bills come in, and leave homework until the last minute. The consequences of your actions are a problem for completely different person – your future self.
There are not many people in the world who get their homework done prior to the night before… So, visualising your future self, the night before it is due, can create a mental connection to help get started on things today.