I started a second course this week (through Coursera) that's titled Lifestyle and Nutrition. One of the lectures included an interview and slideshow from Peter Menzel titled "Hungry Planet". This photographer and his wife traveled to several different countries and photographed families with a week's worth of food. It was really interesting to see the different kinds of foods people eat in different parts of the world, and to hear about the families that were photographed.
I thought it might be interesting if I took a collection of photos of the foods we eat each day for a week, and then look at them a year from now to see how things have changed. What do you think would change from year to year for you? What did you think of the slideshow I linked to?