One of those "probably known for years by most" items, but news to me.
In Safari, hitting Command-R will reload/refresh the page you're viewing. But if you're like me, and almost always use the Command-click to place links into a new waiting tab, I usually have 10 or 20 loaded pages all tabbed up and in one window.
Well, if you hit Control-Command-R,
all of your tabbed pages will reload/refresh. Very handy if you go away for an hour or so, and want to see those pages all in their latest changes.
Safari will actually show this to you in its menu. Click on the View menu. Now, while the View has its drop down menu showing, toggle the Option key. You'll see the new menu item change. Check out both the File and Edit menu as well. There are some other options available when holding down the Option key. The best one for me is that "Plain Copy" one that copies without any formatting.
M1 2020 Mac mini (16G 2T) • Ventura 13.x • Dual 25" Acer 1440p LCDs • M1 2020 13" MBAir (256G 8G) •