Gratitude Monday -- The Five Dollar Fix Edition

About the middle of last week our basement computer died. It hardly ever gets used, but my husband fires it up once in a while as needed.
It had been needed for several days in a row last week. He noted it had been acting odd and then one day it was fine. The next day it was dead.
Because we don't know anything we decided to open it up and clean it. When we did we found a little green light on inside. This gave us a bit of hope and utter confusion. A light meant power was getting in to it, but why wasn't it switching on?
We did everything we could think of and then gave up.
But deep inside, I don't give up. Not when a thing makes no sense.
So the next morning I researched "green light on inside, but no power" and found my answer. I spent several minutes checking other results and found they were all about the same: the CMOS battery was dead.
I had no idea what that was, but it is by the motherboard where the green light was lit. I didn't know what a motherboard was and still don't, but it doesn't matter.
I watched a video on changing a CMOS battery mostly because I had no idea where to find it, bought a new one for $5.80, and popped it in.
I am so grateful the computer works.
I am grateful it was an easy fix, grateful that I found the answer so quickly and could fix it myself, and so very grateful a computer problem was fixed in a few minutes for only a few dollars.

**
Properly I should have rounded up and called this "The Six  Dollar Fix," but $5 better suits my ear.