How to install packages without internet connection

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http://askubuntu.com – I'm just beginner to linux operating system I have following doubts 1.Now i am using ubuntu 10.10 version i dont have net connection in my home So how can i install packages manually for ex: if me and my friend have same version and same hardware config if he installed installed all packages in his laptop can i install all his packages by copy packages from his lap to mine ?? if there is a way then how to do it?? Thx guys in advance..... :) (HowTos)