84600 seconds

Suppose you wake up one day to find an envelope on your bedside which isn't  supposed to be there. On checking it you find 86400 dollars and a note signed by your fairy godmother, saying that the money is rightfully yours- a gift from her with no strings attached but whatever is left unspent at the end of the day would  disappear. How much of it would you spend? All of it right?.... Of course all of it.
If you would spend all of the 86400 dollars,