I have a whiteboard on which I write down all my todos for the next week. Like "lunch with friend", "call dad", "do laundry", "buy new flowerpots", "dentist app

I have a whiteboard on which I write down all my todos for the next week. Like "lunch with friend", "call dad", "do laundry", "buy new flowerpots", "dentist appointment" etc. I use a blue marker for purchases, green for cleaning activities, and purple for social activities. When I'm done with the item I cross it over but I don't erase it. For me keeping my todos on a whiteboard works much better than keeping them in a notebook or text file.