Yeah so i have many friends, some of them business partners some of them just friends.

And the suggestion is that there could be groups on friends list, that you could create groups and name them. for example : business partners, friends, randoms, and all that. 

I hate to browse thru my friends and look for the person that i wanna talk to. 

Groups would help alot and make things easier. 

Sorry if there is already a post of this. But i don't wanna waste time and look for it

So you'd rather waste everyone else's time instead.