Shutdown. I refuse to pay the electric company any more than necessary and studio gear can take up a lot of juice.

--
Scott R. Garrigus - http://www.garrigus.com
* Cakewalk SONAR Video Tutorials: https://www.youtube.com/u...gus?sub_confirmation=1
* Author of the Cakewalk Sonar and Sony Sound Forge Power book series: http://garrigus.com/?PowerBooks
* Publisher of the DigiFreq music recording newsletter: http://www.digifreq.com/
* Publisher of the NewTechReview consumer tech newsletter: http://www.newtechreview.com/

promidi
My desktop is on 24/7.  There are things that run over night.  Backups.  defrag weekly (Yes it's a non SSD),etc

ditto

I shut down my laptop after every session, for 2 reasons.  The unlikely risk of a power issue, and also my cats sitting on the keyboard and inadvertently pushing a key that does something.

My off-line desktop computer is shut down after every session.

I have a desktop and just don't like the idea of it being left on all the time - maybe it's paying for unnecessary electricity, I don't know.Why would you leave it on all the time when it's not being used? And what about power cuts? Leaving it on makes no sense to me. 

24 /7 . just shut down for updates, some times on weekends.

I'll qualify my response above:
 
My machine is connected to a UPS, so if I were to leave it on overnight and we DO get a power cut, we'd be woken by the God awful noise of the UPS alarms kicking in.
 
My sleep is far too precious.

I shut down my desktop. Even idle it creates a certain amount of heat, which in the warm months (most of them in Austin TX) I then have to get rid of via air conditioning, so then I'm paying twice for electricity. 

Bristol_Jonesey
I'll qualify my response above:
 
My machine is connected to a UPS, so if I were to leave it on overnight and we DO get a power cut, we'd be woken by the God awful noise of the UPS alarms kicking in.
 
My sleep is far too precious.

Same here.  I am on a UPS and have the modem and router connected as well.  I shut off my desktop when done with backups.  The UPS also does line filtering as we sometimes have dirty power in the Las Vegas valley.

My desktop is on 10-12 hours a day and then shut down every night when I'm done. My last PC, a standard issue Dell with Windows XP, was still running fine after 14+ years on this schedule. I did have to replace the graphics card around the 10-year mark.