Do you back up?
I pressed the 'On' button. Nothing happened. I checked the power supply which was fine and pressed the 'On' button again. The laptop remained lifeless on my lap. Fighting the rising panic, I tried again. Still, there was no response. My laptop was dead.
At that time, I was not in the habit of backing up but thankfully everything was not lost as my husband, an IT bod, managed to strip down my laptop and rescue the hard drive. Still, it taught me a particularly important lesson - back up your files.
I now back up on a regular basis onto a separate hard disk. It may be a bore but it's better than losing my writing. Get the backing up habit and you won't regret it.