Day two, total cash spent = £4.70. Bought lunch on campus. Had a lovely salad, some fruit and some juice. I can’t honestly say, though, that my choice was based on purely taste factors. When looking at the options, price weighed more heavily on my mind than usual. Despite envisioning this as a purely observational exercise, it seems that I cannot help but be more self-conscious about what I spend when I know I’m going to write it down. This effect is noticeable already, and I’m only 48 hours in.