I am the best I will do in 1/2 of the cost, I am experienced,I am speed".
No, i dont write all of this. Coz everyone writes the same thing again and again and again. And clients are completely bored of this. I remember last month their was an after effects project i played on. And in description i wrote,
"This is my bid, know what i do i aint a kid. I like the offer so dont refuse, i am the guy whom you will again use. Price is good to me, days will go with me."