I believe that inspiration comes from mundane life. When I went through my photo album, I was thinking that maybe I can combine camera roll and my collection as the inspiration idea. Nine out of ten people asked me the same question: why do not you throw away receipts? Personally, it is a crucial part for me. It tells a lot that paper cannot, such as my spending status, diet, lifestyle, daily schedule, and shopping preferences. If it is not for those receipts, I would not even know that I always buy milk and chewing gum every time I go to the supermarket. Our casual daily records help us to understand ourselves better.