There is a mouse graveyard in my office cabinet — devices I’ve tried and discarded because they didn’t help with my shoulder aches. The solution was a roller ball mouse and Logitech’s MX Ergo is the best I’ve found. It tilts for a more natural “handshake” grip and has a slow-mo option for more precise movements in Photoshop and other apps. The scroll wheel is speedy but precise, as is the trackball and you can switch between two devices with the pairing button. You can even program the various buttons to do app-specific things using Logitech’s software. It’s also a handy companion for an iPad and makes a good Mac accessory as well.
My only gripe is the antiquated micro-USB charging port, but the battery lasts long enough that I only have to use it once every few months. It’s pricey at $100, so you may prefer the $70 Ergo Lift. It also offers a handshake grip, but without the roller ball, and has Bluetooth or USB dongle connectivity options.
Of course, there’s also Apple’s own Magic Trackpad, which basically replicates the MacBook’s touch surface so you can place it anywhere. If you’re a fan of the multi-touch gestures on your MacBook, this could be a more comfortable way to use them. — A.S.