Battery light on, few questions

Honestly in all the years that I've owned a Honda I've never had the battery light come on. I've read through the troubleshooting and they use a lot of tools that I do not have access to (amp clamp, battery load machine). Does anyone have a laymens way troubleshoot my issue or should I just remove the alternator and have an auto parts store test it? I know it's not charging because on my way home last night the tach went dead and then the speedo wasn't working and all my lights were super dim.