I'm a big fan of my Logitech M510 wireless mouse: https://www.logitech.com/en-us/product/wireless-mouse-m510 https://www.logitech.com/en-us/product/wireless-mou

I'm a big fan of my Logitech M510 wireless mouse: https://www.logitech.com/en-us/product/wireless-mouse-m510 https://www.logitech.com/en-us/product/wireless-mouse-m510 It runs for ages on just two AAs (their website promises a 2-year life, which honestly sounds about right from my experience). It's very ergonomic, fits my hand perfectly. The back/forward buttons are positioned perfectly -- you can easily press them when you want to, but you'll never press them accidentally. The scroll wheel is nice and even has horizontal scrolling (not something I need often, but nice on the rare occasion I'm in Photoshop or whatever). The USB receiver is tiny enough that I can leave it in my laptop all the time. Logitech's been selling the M510 for years with almost no design changes, because it simply doesn't need improving.