How can I check the file size of an image before attempting to upload it to Google Images?

You can easily check the file size using your operating system's file explorer or command-line tools. On Windows, right-click the image file, select 'Properties,' and the file size is displayed. On macOS, right-click the image file, select 'Get Info,' and the file size is listed. Command-line tools like `ls -l` (Linux/macOS) or `dir` (Windows) also provide file size information.