The power of powering down your computer

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We just had another example of how powering down a computer can be a cure-all. My wife's computer seemed to be operating fine, with just one issue - when she tried to print, nothing happened. Printing just didn't work for some reason we couldn't figure out. She actually rebooted the computer a couple of times (without powering down), and that didn't fix the problem. Then for some reason, maybe because of a brief power outage, her computer was shut down and we had to power it up again. And when we did, to our surprise those print jobs she had been trying to get printed started coming out. Here's my take away. Hot boots (when you reboot without powering down) are a convenient way to address a lot of problems, but not all. Sometimes you just have to do a complete power down then power back up cycle (called a cold boot) to fix some issues. So, if your computer starts doing things you can't figure out, your last resort is to power all the way down, then back up.