Working on Desktops, Laptops, Notebooks, etc..
Keep food and drinks away from your keyboard. Accidental spills and crumbs will shorten the life of your keyboard and attract ants.
Security Basics 101: If you share a workspace, Log off or Lock your account session when you walk away from your workstation.
New computer or replaced your monitor? Enable a screensaver to prolong the useful life of your screen.
Don't place laptops on soft surfaces. These prevent proper circulation and will cause it to overheat.
Get an ergonomic chair if you spend long hours working. A wrist rest for typing or using your mouse reduces the risk of carpel tunnel syndrome.
Take frequent breaks to keep your mind alert and to give your eyes a rest. If you have trouble seeing the text onscreen, consider changing the screen resolution or consider a larger monitor that may also help to reduce glare
When typing a long document, remember to save often
Protect your equipment from electrical damage (blackouts, brownouts, voltage spikes etc..) with a surge suppressors, line conditioners and UPS (Uninterruptible Power Supply)
Unplugging a flashdrive? Remember to stop the device to reduce the chance of shorting the USB contacts if it being removed at an angle.
If your computer is running slow, there may be pending updates that need to be installed or being installed in the background. If it's doing that, it may reboot a couple times to complete the update(s). Also, get into the habit of rebooting to clear its memory of orphaned bacground processes.
If your system is a little buggy and don't want to take a chance installing software or an update that might make it unstable, create a restore point first.
Keep an eye on your free space. The less space there is for the operating system to swap files, the more chance you will eventually encounter errors which requires more processing power, thus more heat, potential battery drain and a much slower device..
Internet slow/slower than usual? It might be your router. Unplug it for a few minutes to let it cool if it's overheating. Make sure it's not located close to a microwave or electrical wires that can cause interference.
Still having Connectivity problems? If the router is fine, try disconnecting, rebooting your own device, then getting physically closer to the router before attempting to reconnect.
If your antivirus prompts you to perform a scan or download the most recent virus definition updates, save your work, close any unused open applications and do it.
Make sure the ventilation fans of your computer are not blocked to prevent it from overheating and shortening the life of the discrete & integrated hardware components.
Keep your computer storage and work areas dust free to decrease the chance of hardware component failure due to heat/static buildup and increased friction (cooling fans running slower or not spinning at all).