On the weekdays, or when I have school, I'll take a shower before I eat. Taking a shower is the first thing I have to do, if I forget to do it the previous night. Then I'm all clean right away, my hair will have the MAXIMUM time to dry, etc.

During the weekends, summer, or other breaks, I eat before I shower. Obviously. Showering is just not very high on the priority list at those times.