The Principle of Least Effort
People will naturally choose the path of least resistance when completing tasks. Users tend to use the most convenient method available, even if it's not the most efficient.
When to Use
Reduce friction
Minimize the number of steps, clicks, or actions required to complete common tasks.
Make the easiest path the right path
Design interfaces so that the easiest way to accomplish a task is also the correct or recommended way.
Provide shortcuts
Offer quick actions, keyboard shortcuts, and other time-saving features for power users.
When to Avoid
Don't sacrifice security for convenience
While reducing effort is important, don't compromise security or data protection for the sake of convenience.
Origin
The Principle of Least Effort was first articulated by linguist George Zipf in 1949, who observed that people tend to use the shortest words and simplest expressions that will serve their purpose. In user experience design, this principle suggests that users will choose the easiest available method to accomplish their goals, which means designers should make the desired path the easiest one.