show where your diskspace is being used

filelight

show where your diskspace is being used

Filelight allows you to understand your disk usage by graphically representing your filesystem as a set of concentric, segmented rings.
Material Design theme for GNOME/GTK+ based desktop environments

orchis-gtk-theme

Material Design theme for GNOME/GTK+ based desktop environments

Materia (formerly Flat-Plat) is a Material Design theme for GNOME/GTK+ based desktop environments.It supports GTK+ 3, GTK+ 2, GNOME Shell, Budgie, MATE, Unity, LightDM, GDM, Chrome theme, etc.
Remote Desktop Connection client

krdc

Remote Desktop Connection client

The KDE Remote Desktop Connection client can view and control a desktop session running on another system. It can connect to Windows Terminal Servers using RDP and many other platforms using VNC/RFB.
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dmidecode

SMBIOS/DMI table decoder

Dmidecode reports information about the system's hardware as described in the system BIOS according to the SMBIOS/DMI standard.
secure password wallet manager

kwalletmanager

secure password wallet manager

The KDE Wallet system provides a secure way to store passwords and other secret information, allowing the user to remember only a single KDE Wallet password instead of numerous different passwords and credentials.
utilities to read temperature/voltage/fan sensors

lm-sensors

utilities to read temperature/voltage/fan sensors

Lm-sensors is a hardware health monitoring package for Linux. It allows you to access information from temperature, voltage, and fan speed sensors. It works with most newer systems.