The Open Hardware Monitor is a free open source software that monitors temperature sensors, fan speeds, voltages, load and clock speeds of a computer.
Pick your mood and add activities you have been doing during the day. You can also add notes and keep an old school diary.
KSysGuard, also known as KDE System Guard and KDE System Monitor, is designed to make simple process control available to a user without needing to do any special setup - the defaults are usually perfectly adequate.
Beeminder is goal-tracking with teeth. We plot your progress on a yellow brick road to your goal and if you go off track we take your money!
An all-round MQTT client that provides a structured topic overview.
Venmon is a compact size system monitoring utility and multi-ping tool for Windows. It can monitor system memory, processor, battery life, uptime, idle time, network traffic, and drives.