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,
Amazon.com: Logitech M570 Wireless Trackball Mouse – Ergonomic Design with Sculpted Right-Hand Shape, Compatible with Apple Mac / Microsoft, USB Unifying Receiver, Dark Gray (Discontinued by Manufacturer) : Electronics
My Review of Logitech M570 Wireless Trackball - Can It Replace your Mouse?
Logitech M570 Review - RTINGS.com
Amazon.com: Logitech M570 Wireless Trackball Mouse – Ergonomic Design with Sculpted Right-Hand Shape, Compatible with Apple Mac / Microsoft, USB Unifying Receiver, Dark Gray (Discontinued by Manufacturer) : Electronics
Amazon.com: Logitech M570 Trackball - Laser Wireless - Radio Frequency - USB - Scroll Wheel 910-001799 : Electronics
Logitech M570 Wireless Trackball-Double Pack-with A Ultra Soft Travel Sack(2) For Logitech M570 Wireless Mouse + 2 Energizer AA Batteries x 2 - Walmart.com