makeself is a small shell script that generates a self-extractable compressed TAR archive from a directory. The resulting file appears as a shell script, and can be launched as is. The archive will then uncompress itself to a temporary directory and an arbitrary command will be executed (for example, an installation script). This is pretty similar to archives generated with WinZip Self-Extractor in the Windows world.
mnsetup is a script that helps you set up mail and news on a Slackware system or other Linux system. It will set up the "fetchmail" mail client, the "mutt" or "pine" mail readers, and the "tin" or "slrn" news readers. The script will prompt you for your username, password, and email address. You need to have the "dialog" program installed to run mnsetup.
novi is a tool for finding the latest-version RPMs in a tree. It can be used to create Kickstart trees or yum repositories that contain the updated RPMS. In the case of Kickstart, this means machines come to life with the updates already applied. Using novi for a yum repository trims the size of the repodata files, which reduces client download and processing time.
Paco (pacKAGE oRGANIZER) is a simple, yet powerful tool to aid package management when installing programs from source code. It uses the LD_PRELOAD method to track package installations, and provides various options to keep the installed software organized. It's mainly a command line application but it has also an optional GTKMM interface.