One factor you can improve is your experience using the mouse – especially laptop users using a built-in trackpad.
Switching from the one which came with my desktop PC to this ergonomic one (this one is cabled), was a great usability experience.
Suddenly all my tasks seemed easier as the mouse glided across my screen and clicked on first attempt – wow!
A quality mouse costing say £20-30 can be well worth the investment for regular or long term users.