Change Home directory on Ubuntu

Sometimes, people like to create an independent partition for /home. The advantage of this is that the new installation of Ubuntu by erasing the old copy can save the home folder. In general, personal stuff is stored in this folder. So all personal stuff can be saved in this way. The only trouble is one has to change the home directory after each new installation. Please refer to the following link for howto.
Change home directory.
Or copy the link (https://help.ubuntu.com/community/Partitioning/Home/Moving)