18. Use an image preview windowA very useful function that Windows has is to show you a preview of pictures that helps if you're trying to locate a specific one.
Go to the folder where you keep picture files.
Hold the "Alt" key and press the "P" key - This will open up a preview window.
If you're done, you should use the Alt + P combo again, as the preview window can be a hindrance when not wanting to preview pictures.

An example of what the preview tool looks lik