What would just one of something look like?

Not a diversity of items, but a simplicity of things. A specificity, a selection, and a deliberate choice between several?

Not three workout programs, but just one workout program.
Not seven yoga mats or towels, but just one.
Not eight new dresses or blouses, but just one. Your favorite one.
Not two sets of bedding, but just one.
Not four new books, but just one.
Not three bedrooms, but just one bedroom.
Not two cars, but just one car.
Instead of two sets of tablewear, just one set.
Instead of eight dreams, just one dream to work on.

Sometimes I get caught in the trap of needing more. I have a brown pair of boots, but now I need a black one. I have a black pair, but now I need a tan one. And I need a pair of rain boots. Four pairs of boots? Do I need four pairs of boots?

What would just one look like?

[Or none at all?]