I have a Logitech G700s mouse with 9 or more programmable buttons and different profiles based on the window in focus. My most useful mouse binds are copy/paste/enter buttons, backspace on the wheel tilt left. Win+tab on wheel tilt right helps to move around open windows very quickly. Also have 'q' and 'exit' for when I'm perusing terminal windows without my hands on the keyboard.
Paired with a G15 keyboard with a plethora of buttons, which include shortcuts to my most common applications as well as switch desktops left/right.
Paired with a G15 keyboard with a plethora of buttons, which include shortcuts to my most common applications as well as switch desktops left/right.