You can use ulimit -c 0 to disable core dumps, but that obviously won't remove any core files that are already sitting on your filesystem - and sometimes you have no idea where they might be since different stuff can be running in the background from any directory. These files can be a few gigabyt...

One thing that has always annoyed me in Slackware is that /tmp never gets automatically cleared so I end up with with lots of space wasted in there. Especially after building lots of SlackBuilds and filling up /tmp/SBo :). I sometimes looked in there to clean it up manually and hope I don't delete s...