I never owned Clive Sinclair's most successful invention, the Sinclair Spectrum. And I never owned the one that tainted his name, the Sinclair C5.
I did own many products that fall somewhere in between: The ZX81 (with 16K, later 64K RAM expansion), the QL (double Microdrives - yay!), and the Pocket TV.
What Sinclair products taught me was a high tolerance for crashes. When your first ever computer spontaneously reboots every 20 minutes then that is exactly how a computer is supposed to behave. What a great preparation for everything that came after.
Thank you, Clive Sinclair, for many wonderful memories and hours and hours of excitement in front of a flickering b&w TV typing away on a membrane keyboard.