Standby!

For all these devices:

• microwave oven (clock)
  
• three stereos (each has a clock)
  
• two network switches (sitting idle)
  
• projector ("off", showing orange LED)
  
• VCR (clock)
  
• Xbox (shutdown)
  
• two LCD screens ("standby" / amber LED)
  
• two computers (shutdown)

Total power use is 93W, which is about 35 cents per day ($127/year). In other terms, one day of standby for all those devices is the same as running:

• an airconditioner, for 45 minutes.
  
• two-bar heater, for an hour.

Other numbers:

• Fridge, running: 140W
  
• Projector, running: 130-150W
  
• Stereo, running: 30-50W
  
• Desktop PC (4 disk drives), running: 240W, playing games: 310W
  
• Airconditioner: 3000W+
  
• Pool pump: 1000W
  
• Xbox, playing games: 65W
  
• Laser printer, printing: 650W
  
• Four 50W halogen lights, modern transformer, full power: 200W, dimmed as low as my dimmer will go: 50W
  
• Six 50W halogen lights, "old" iron core transformer, full power: 300W, dimmed: 30W
  
• Electric blanket, queen size: 140W