Only 2.5% of students who live within two miles of school get there via bicycle. Still, by not taking a bus or car, those six hundred thousand students are saving almost one hundred thousand gallons of gasoline--A DAY.

Use Blu-ray discs if you can. The format offers more than five times the storage capacity of traditional compact discs. Blu-ray Discs are half made of paper, so they can even be shredded, making them easier to dispose of and recycle than traditional CDs.

Go digital on all your products. Cell phones and even televisions are going to be mandated to use digital signals as of 2009, making all television sets that rely on an antenna without a digital tuner unable to recieve a television broadcast without an external digital broadcast receiver. So if you buy a broadcast-only (analog) TV, you're just going to have to toss it eventually.

Use voicemail instead of an answering machine. Answering machines guzzle energy 24/7. When they stop functioning, they become hazardous waste in the nation's landfills. If all answering machines in U.S. homes were eventually replaced by voicemail services, the annual energy savings would total nearly two billion kilowatt-hours.

Try a hybrid taxi if available. If the entire NYC taxi fleet were converted to hybrids, the result in terms of reduced exhaust emissions would be the equivalent of taking 24,000 cars off the road.

If possible, take just a carry-on and you'll save time at the airport. The average airline passenger waits between 20-30 minutes at the carousel to pick up luggage. Carousels operate off electic motors that sap energy. Electric motors account for 70% of industrial energy use; carry ons can help reduce their drain.

Close your shades when you leave the house. Depending on the season, keeping your curtains closed will insulate heat or keep your house cooler. These steps could help you reduce your energy needs by up to 25%. If every home in America closed the curtains when it was sunny in the summer or cold in the winter, we'd save as much energy as Japan uses over that same amount of time.

Use timers on your lights instead of leaving on the porch light. The average household spends about $13 per year per hundred-watt bulb on electricity. If every home in America used a timer for 12 hours a day instead of letting their lights burn 24/7 while on vacation, we could save $187 million in energy costs.

Unplug your appliances, where possible, when you leave home. Residential consumers in the US spend more than $5 billion annually on standby power alone-about 5% of all electricity consumed in the country.

Pack your own shampoo, soap, and toothpaste instead of relying on those provided by most hotels. You'll get the product you want rather than some odd scented gel, and you'll create less plastic waste. A single three-hundred room hotel in Las Vegas uses more than 150,000 plastic shampoo bottles per year.