Landscape wall calendars are useful for tracking the work progress. It is like a live Gantt charge, only better. Also one can buy a calendar online, unfortunately, I could not buy such in a regular bookshop UK or Estonia. So I created my own, very simple design, and printed in on a plotter for a modest fee. The original design is kept on in a github repository: github.com/vladislavivanistsev/walendar