Don't chuck the e-Waste: Dispose of old electronics by recycling them or donating them to charity. For ideas, click here.
Go Goth: Change your default computer font to Century Gothic. It uses less ink to print. (And you'll save money!) (Tip from the University of Wisconsin)
Drip, drip, drip: A single faucet dripping six times a minute can waste 29 gallons of water per month, according to the U.S. Geological Survey. Fixing leaky faucets and connections under cabinets can add up to major savings on your water bill.
Wrap it up! Wrap your hot-water storage tank with an insulation blanket, even if it's a newer model. (Tip from ConEdison.com)
Install a programmable thermostat: With a programmable model, you don't have to remember to adjust the temperature for when you're away or asleep. If you program the setbacks properly, you could save up to $180 per year. For more info, visit www.energystar.gov/pts.
Seal the leaks: You can save up to 30 percent on your energy bills by sealing all leaks in your house using caulk or foam. (Tip from SFgate.com)
Forgo the flowers: Consider getting your sweetheart a flowering perennial plant for Valentine's Day. A plant can be transferred outdoors in the spring and enjoyed for years to come, whereas cut flowers will just be thrown away.
Use the cruise: Using cruise control on the highway helps you maintain a constant speed and, in most cases, will save gas. (Tip from FuelEconomy.gov)
Recycle! Make sure to take advantage of San Antonio's recycling program. Many recyclables still end up in landfills.