Hands up all you infrastructure people who have got a web server plus a firewall and what the heck a file server running at home in your house, just waiting for you to login and open an e-mail or pull down a file! Come on there must be a few.
I admit it I do the same. Leave multiple servers running at home in my house doing nothing for 95% of the day. This waste of energy must be burning a huge hole in the ozone.
I do the same at work. Leaving test networks running because if I shut the damn thing down for long enough then there goes the AD(tombstone).
The reason I do it is because I have to keep my skills up to date with the latest release of Exchange or Windows OS.
Can someone tell Bill to stop releasing OS and application changes every three years!