Gene,
Quoth Gene Heskett.....
And I didn't want to load up the u-sd the pi boots from with all that tex stuff, probably 3 to 4 gigs worth.
You might find this useful:
dpkg-query -W --showformat='${Installed-Size;10}\t${Package}\n' | sort -k1,1n
Shows the installed packages in ascending size so you can see what's eating the space and get rid of it with an "apt-get remove".