Writing (Evernote, Scrivener, Ulysses), editing photos (Photos, Pixelmator), managing my iCloud photo library, family slide shows (Keynote), banking(Credit Union app), printing, email, web browsing (thread different web browsers), buying/selling on eBay/Etsy/Amazon, Pages, Numbers, School work on-line(College), gaming (Gigs of games), streaming music (Apple Music), buying and watching movies/tv shows, creating and managing my to do lists, calendars, and reminders, navigation on trips (I have a 4G/LTE model), programming, design and layout, 3-D printing, terminal connections (secure CRT), amateur radio, training (technical and physical), messaging
The easier approach is to explain why I still have a laptop....
Because I haven't sold it yet.