I know about Object > Transform > Align Objects, but this is too slow. Even if you make a keyboard shortcut to Align Objects, you still must use the mouse to click on the desired X, Y, Z axis.
I know about the Pivot Point Align method where you scale to 0. In Blender 2.8, this seems to be disabled. Alt + , does nothing and the Pivot Point Align button no longer appears in Blender. Even if this mode were still available, changing modes and scaling to 0 each time you need to quickly center something would be way to slow.
Surely this is such a common operation in 3D modeling that is done all the time. How is it done?