Comparison of mental effort through time between using an habit to store something or putting it anywhere. In the beginning we need a greater mental effort because we need to remember to put the thing in that specific place. But when it becomes an habit, it's automatic. On the other hand, to find something, it's impossible to have it harder than if that thing was randomly stored. So, putting the thing in a specific place is at worst the same as anywhere, but almost always better.
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