To think outside of the box means to think differently. I tend to think outside the box, but I also like to put on my 'thinking box' and think inside of it too! I myself spend a lot of time "in my head" planning my photographs. Do you do some planning when it comes to your photographs or do you shoot randomly to achieve your picture of the day? I think both methods are great!
It is BROWN week so consider including it in your photo. Maybe you are "thinking" of something brown such as a doughnut or chocolate, a mushroom or a coffee! Find something brown to think about, or don't think about, but photograph it none the less!