This week's budget
My budget week starts on Thursdays and ends on Wednesdays (to coincide with payment of my scholarship). It is already Tuesday and I still have $60 left. Also, I don't actually have anything I need to spend money on for the next two days. So my plan is to hide that $60 in my drawer until Thursday morning.
Any money I don't spend in a week is being put into my emergency fund. The idea of the emergency fund is that I will be able to live on it should my main income source stop for any reason.