Close the gaps - gaps that leak air and energy dollars can be found where doors meet, where parts of windows meet, and where doors and windows meet the walls. Caulking and weather-stripping materials can help keep the air from escaping.

Install a seven-day programmable thermostat - an automatic thermostat will help to ensure that you're only using energy when you need it.

Use a power strip - "smart" power strips with built-in occupancy sensors shut off plugged-in devices when no users are present, adding up your energy savings.

Clean or replace the filter on your cooling or heating system. Some filters can be washed and re-installed; others should be replaced every month or two.

For more cost-effective ways to save money in your business, sign up to receive our Small Business Guide to Energy Savings.

Think ENERGY STAR^®: when buying office equipment, look for ENERGY STAR^® products, which work the same or better than standard products but use less energy.