My eyes are sweating when I see photos my school days with classmates, or when I see old cartoon and games online, that I used to play during childhood. I know that am not the only one who feels the same. A feeling that you experience when you open your window of time to perceive the pleasant past. Wanna join this nostalgia club? It is easy, just look at your old family photographs or few pages of your childhood diary that reflects your cuteness.