Many of us were taught in school to put two spaces between sentences when typing a paper.
But, unless you are old and learned how to write on a typewriter, you never should've needed to do this.
The practice of double-spacing between sentences dates back to the mid-1900s, when manual typewriters used monospaced type that made sentences difficult to decipher.
Now that we use proportional fonts, double-spacing between sentences is not only unnecessary, it's also obnoxious.
I don't see people double-space very often anymore, but when I do, it's like nails on a chalkboard. *Stares pointedly at her husband, who cannot seem to kick this habit.*
Bottom line: Never put two spaces between sentences. It makes your writing look choppy, archaic, and academic (in a “trying-to-hit-2,000-words” way, not a “smart-doctorate-student” way).
With a wink,
Sarah 😘