I am playing some adequate shooter, and I have reached the last level. Like most, you hold down the left mouse button to fire. This being the last level, I am firing continuously for … longer than I can admit to myself. Wave 9 of 13 complete, huzzah, I have this nailed! Shift my hand a bit because I’m getting sore…
My new mouse has these really useful buttons on the side, which default to back and forward in a web browser. Microsoft designed this mouse very well, so they are right at your fingertips. You barely even need conscious thought to use them.