Left Handed Mouse
If you are left-handed, do not buy those symmetric (ambidextrous) mouse. Because, one side's buttons basically become useless.
Get a left-handed mouse instead.
Razer DeathAdder Mouse Left Hand
Razer Naga Left Handed MMO Gaming Mouse
Evoluent VerticalMouse lefthand
If you have a question, put $5 at patreon and message me.