Wait until you find out you can change which directory screenshots save to. I have a dedicated "screenshots" directory in my home directory. And then a stack in the Dock for it similar to the one for the Downloads folder.
Any idea if there is a way to remove the preview that shows up in the bottom right corner? OSX doesn't write the screenshot until after that disappears which is annoying
While recording your screen, you can also record your microphone by choosing it in the Options menu. However, there is no way to record audio that is output to your speakers unless you first create a custom audio source using Soundflower (https://github.com/mattingalls/Soundflower) or Loopback (https://rogueamoeba.com/loopback/).
The preview thing is really handy as you can directly drag and drop it into a document or chat window or whatever.
After you’ve done that it won’t be saved, which is great as you can quickly snap and use a screenshot without having to switch to the Finder - and the desktop doesn’t get cluttered with hundreds of images.
A huge problem with this is that some apps don't "accept" this drag and drop, and the preview just disappears without saving the screenshot file. I can't remember the exact apps which behave that way, but I've been burned and irritated multiple times because of this. As a result, I disabled the preview feature and added the screenshot folder to the dock just like OP did.
Even better, you can just have those screenshots save to only your clipboard. Just add ctrl to your combo, _or_ you can remap it in Keyboard under System Preferences.
Wait until you find out you don't even have to save screenshots (most of the time) and can copy them straight to clipboard, and Cmd-V them where you need them. Cmd-Ctrl-Shift-3/4.
Yeah this is what I do 98% of the time. I'm usually not taking a bunch of screen shots. Just 1 or 2, usually because copy/paste from slack is such a PITA