1440.
Alert: You have received an amount of 1,440 in your account. They expire by the end of the day. Use them well.
If you had 1440 bucks in your account and you knew that you had to spend them today or they would cease to exist, where would you spend them?
You can trade this amount for anything you like. You can buy food, or muscles, or knowledge or entertainment or anything under the sun. Where would you want to spend them?
What if the balance reduces by one unit every minute, instead of expiring at the end of the day? How does that change things for you?
What if, you would get another 1440 in your account the next day and the day after that? How would that impact your decisions?