So, I know that formal advice for writing says to always use curly quotes rather than straight quotes. For reference, the first line in the image below has curly quotes and the second has straight quotes (the curly/straight thing also applies to single quotes/apostrophes):

Allegedly, curly quotes are easier to read than straight quotes, but I've never found that to be the case, and I just prefer the compact simplicity of straight quotes.

However, their main benefit in my eyes is that they don't fuck up html. As you can see in this chart from Practical Typography, straight and curly quotes are fundamentally different characters on computers:

So if you're writing in google docs with the intention of pasting something it into AO3's summary, notes, end notes, comments, or main text html boxes, be aware that those curly quotes are going to destroy html for things like links and images.

I've had curly quotes turned off for so long that I'm not sure if this very handy AO3 posting script for Google Docs converts them to straight quotes or not, but either way, I wanted to share how to turn curly quotes off if you want.

First, go to Tools, then Preferences:

Under Preferences, in the General section, uncheck 'Use smart quotes.' You can also fiddle with other things in Substitutions, which is handy, but that's up to you.

Keep in mind that this will not convert all of your curly quotes to straight, or vice versa. It only changes what you type after changing the setting. If you want to convert all of your double and single quotes, you'll have to run a find and replace.