MY QUESTION MARKED ITSELF SOLVED , Solved 128899

Is there a problem when you click on 'still need an answer' on Question #128899?

Regarding SoftwareCenter (I'll hate the day when I have to use it) there doesn't seem to be a history_cleanup_function (yet), so I'd log a bug, go to brainstorm or add a comment there:
https://wiki.ubuntu.com/SoftwareCenter
Could find nada on the web about removing history from SoftwareCenter, in contrary the function seems to be very welcome.

Synaptic has in it's settings section an option where one can choose how many days it should keep the history, default is 100.
Maybe test it with zero or one day and see what happens within SoftwareCenter.

A history.log is in /var/apt, which again is the result of /etc/logrotate.d/apt.
Since there're many logfiles might be SoftwareCenter has it's own (somewhere).

Bleachbit does nothing else then apt-get commands do. (Just another GUI)
http://www.liberiangeek.net/2010/05/remove-old-packages-browsing-history-and-free-up-disk-space-with-bleachbit-in-ubuntu/

http://ubuntuforums.org/showthread.php?t=1563777

 the package manager setting made no difference . the software center has history for sept 7 when i first tried 10.10 and then removed it then reinstalled oct 7 . both list look like a full ubuntu install list of the os .
 maybe there is no way to remove this history , but i am going to keep trying to find a way to get my system to read the full 120 gb after install . thank you for your help .

and no thanks to Fabián Rodríguez .
 i hate people just looking to build karma and not helping .

greg,
actually to remove the 'history' which is just listing the packages won't bring much space as you wish.
If you meant cleanup of package cache, it's simply apt-get autoremove and else.
Or again an option in Synaptic settings -> files (e.g. remove after installation)

And yes, of course there were also some quantitative changes since the beginning Ubuntu version, some say it got bloated, others still miss this or that app.

Since packages which are installed get updates, maybe consider to remove packages (applications) you don't use at all, but take note during the removal process that essential packages don't get removed.
Via terminal you could also simulate the removal first to see what would happen.
e.g.
sudo apt-get -s <package_name>
(see manpage of apt-get)

https://help.ubuntu.com/community/Diet%20Ubuntu
https://help.ubuntu.com/community/SynapticHowto

Erratum:
sudo apt-get purge <package_name>

Erratum:
sudo apt-get -s purge <package_name>

Apologize, wasn't a good idea to write commands in a hurry.