Definition
Make It Easy is a core principle of behaviour design: the frequency with which people perform any action is inversely proportional to the effort that action requires. Everything else being equal — motivation, intention, belief in the value of the act — humans and animals reliably choose the path of least resistance. Reducing the effort cost of a desired behaviour therefore increases its probability of occurring, often more powerfully than appeals to motivation or willpower.
This principle draws on a well-established finding in behavioural science: the relationship between effort and action is not merely linear but has threshold effects. A small reduction in friction can tip an action from rarely-done to routinely-done, while a small addition of friction can collapse a habit entirely. Researchers call this sensitivity to small environmental obstacles the principle of least effort or, in more formal economic framing, the transaction cost of a behaviour.
The insight is bidirectional. The same logic that makes it easy to build desired habits can be used to make undesired behaviours harder. Increasing friction on a bad habit — introducing extra steps, removing environmental cues, relocating tempting objects — reduces its frequency through the same mechanism: not because motivation changes, but because the cost of following through rises above the impulsive action threshold.
Why it matters
How it works
Friction reduction in practice
The practical application of Make It Easy involves identifying every step between an intention and its execution, then removing, shortening, or automating as many of those steps as possible. If reading more is the goal, the friction audit might reveal: the book is on a shelf in another room; the phone is nearby; finding a bookmark takes effort. Each of these is a barrier. Removing them — keeping one book on the nightstand, charging the phone in another room, inserting a permanent bookmark — shifts the environment so the desired action becomes the path of least resistance.
This approach works for teams and organisations as well as individuals. Onboarding processes, form completion, exercise uptake, and medication adherence all improve predictably when researchers identify and remove friction points. The mechanism is consistent: effort is a real cost that people discount desired future outcomes to avoid, so reducing that cost increases the net attractiveness of the behaviour in the present moment.
Habit stacking and environmental cues
A complementary technique is to attach a new low-friction behaviour to an existing high-frequency one — a practice sometimes called habit stacking. Because the existing habit already happens with little deliberation, linking the new behaviour to it means the new habit inherits the existing habit's near-zero startup friction. The environmental cue for the old habit becomes the trigger for the new one, and the overall effort of launching the new behaviour falls toward zero.
Where it goes next
Make It Easy is one law within a broader framework of behaviour design that also includes making a behaviour obvious (visible cues), attractive (desirable associations), and satisfying (immediate reward). Together, these four dimensions explain most of the variance in whether a behaviour persists over time. Make It Easy specifically addresses the execution gap — the space between intending to do something and actually doing it. When combined with Make It Satisfying, which ensures a positive signal follows each repetition, the two principles cover both the front end (starting the behaviour) and the back end (reinforcing it) of the habit loop.