My everyday rider: the Logitech M570. Though it works well and travels easy, it hardly lasts me a year without the ball chipping or something else breaking. Any advice for better mouse-care,
Logitech M570 Trackman Wireless Trackball Mouse, 2.4GHz with Unifying USB-Receiver, Scroll Wheel, Programmable Buttons, 18-Month Battery Life, PC / Mac / Laptop : Amazon.co.uk: Computers & Accessories
Logitech M570 and M575 Ergonomic Wedge Mount for Trackball Mouse Ergo Design - Etsy UK