I use the apt-get clean but just created an alias for it in the bash.rc for root. Then when in root I'll just type cln after I'm done with it. I haven't created anything for the others. But just the clean one. So at the root prompt I just type cln and let it take care of it.
Looking at some of those other commands for bash on the purge etc I might go ahead and add some of those to the .bashrc for root. also. Look good.