By now, we've all heard that your appliances use electricity, even when they're not in use. This made sense to me for some things (computers, telephones, stereos), but not for others (the oft cited toaster). So, I dug around a bit, and finally found a guy who'd done the leg work of checking current draw on his appliances. His post is here. I've included his table of energy use below. Just click it to expand it to a readable size.
The long and the short of it? If you're concerned about saving electricity, turn off your appliances when you're not using them, and unplug your computer and your entertainment system if it makes sense (with our cable box, boot up takes about 10 minutes, so unplugging is not an option). But if you think the savings will pay for your next vacation, I hope you're only planning a trip to the local Snappy Snack Shack.