The 'Habit Calendar' by Free Period is currently running as a project on Kickstarter, hoping that others will see the value in owning a tangible tool for tracking one's tasks and habits.
The calendar tool is divided into Daily, Weekly and Monthly sections, which make it easy to visualize upcoming tasks and goals at a glance. The monitoring tool is super simple to use, as one only needs to add a checkmark to a task each day as completed. The more a page fills up with checkmarks, the closer one is to making an activity a routine part of their life.
While there are plenty of apps that offer habit-building tools, the Habit Calendar touts that its low-tech format is one of its strengths. As Free Period notes: "The Habit Calendar is a physical thing -- no buzzing, alerts, or screens required."