Everlast, an endlessly reusable notebook
The reason why I bought I bought an Everlast notebook made by Rocketbook! I had been searching for paperless life. This is the video which made me decide to get the notebook when I saw at first sight. The points I thought nice I can erase many times and use endlessly. I can erase using wet tissue: the item is in office. It is easy to convert to a digital format.