Of course, you could also just hit Command + Shift + 5 in macOS Mojave or later to pull up its screenshot app, which gives you plenty of options for customizing what you’re taking a picture of, where the resulting file will save, and whether you’d like to enable a timer or not.
I use Command + Shift + 4 multiple times a day. But, somehow, until the other day I did not know about this screenshot app. Very handy!
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