Has appeared in comments, but deserves its own thread: the MX510 Logitech mouse. Mine is approaching a decade old; still functions perfectly. : r/BuyItForLife
Logitech M510 Wireless Mouse: Comfort Meets Customization in This Programmable Device
Logitech M510 Review - RTINGS.com
Amazon.com: Logitech 931179-0403 MX510 Optical Mouse RED : Electronics
Amazon.com: Logitech 931179-0403 MX510 Optical Mouse RED : Electronics
Logitech M510 Wireless Mouse with Laser-grade Tracking