Mac users with multiple screens: if you lose your cursor, quickly jiggle the mouse / finger on trackpad and the cursor will temporarily get larger & easier to spot.
@CoralineAda I remember the WWDC keynote when Federighi demoed this feature and made a crack about "leading edge innovation" but my work setup has 2 4K screens and I use this feature nearly every day - far more than many much more complex sophisticated features in MacOS