I don't know about you, but I generally have a busy schedule. An everyday schedule looks something like this: wake up at 6:15AM, get ready for work/prepare a smoothie, long commute to work, work all day, chemistry lecture in between, workout, come home, make dinner, study for GRE, work on homework, work on the blog, and go to bed around 11PM. As you can see, there is not much time in my schedule to make a nutritious and filling lunch.