A few months into keeping a simple evening journal, I realised that almost every entry where I felt drained came after a day with no time outdoors. I had no idea until I saw it written down again and again. It made me curious about what others have discovered this way. Maybe a person who always leaves you energised, a time of day you do your best thinking, or a situation that reliably sets you off. What's one pattern about yourself that only became clear once you started writing or tracking things? And did noticing it change anything?