When you are getting rid of an old computer and replacing it with a new one become a scavenger.  Pull out the old hard drive, memory, and CD ROM drives from the old computer before discarding it.  If you are getting a new monitor, save your old one.
Of course, store your old mouse and keyboard also.  That way if a spill occurs on your new keyboard you can just use your old, spare one until you can get a replacement.  Scavenging has saved the wife and I a lot of money.
For other computer tips 
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