When Apple released iPadOS 13.4, it came with an unexpected feature: trackpad and mouse support. You can control an iPad entirely via a Magic Trackpad 2 (the wedge-like one that recharges via a Lightning port). Pair it in Settings > Bluetooth, and look for settings in Settings > General > Trackpad. Apple did an impressive job with integrating a cursor into the iPadOS experience: the small, circular cursor shifts colors subtly depending on the background, becomes a highlighted selection rectangle when over objects, expands icons on the Home screen, and morphs into a thin insertion point when in text. Plus, Apple built in oodles of two- and three-finger gestures to mimic what you can do directly on the iPad screen—see the full list at TidBITS.
(Featured image by Adam Engst)