After 5-6 years using the free mouse that I have got, I have finally changed my mouse! And it feels wonderful. Wow! I had to change because both left and right clicks stopped functioning. Ahhh—- after two weeks of frustration, I ordered from Amazon Prime and it is a new world. It feels like my hand is on a magic carpet. Hope this mouse lasts long as well ^^

Lesson of the day. Use good mouse.