Ask your utility company to perform an energy audit of your home. Set the water heater to the lowest acceptable temperature. Eliminate premium cable and extra phone services. In the winter, turn down the thermostat during the day when you're not home. Consider buying a programmable thermostat. Get rid of halogen lamps. They use 4 times more energy than lamps with 75-watt bulbs.
Avoid costly convenience stores and convenience food items. Use coupons if they will result in products that are cheaper than store brands. Keep simple foods on hand when you're too tired to cook to avoid eating out. Buy store-brand over-the-counter medication and pain relievers. Compare the ingredients; they usually will be the same. Pack your own lunch. A restaurant lunch can cost four times more than the one you bring from home.
Make use of free entertainment at public libraries and local parks. Form a dinner club with friends and take turns hosting dinners. Wait until movies arrive at cheaper neighborhood theaters or rent videos. Go to matinees.
Discuss increasing your car insurance deductible with your agent. Discuss eliminating collision coverage on older cars. Shop around for insurance. Discuss increasing your homeowner's insurance deductibles with your agent. Consider term vs. whole life insurance.
Cut back on expensive gifts. Shop year round at sales to stock up on holiday and birthday gifts. Avoid expensive gift wrap. Buy holiday gift wrap at post-holiday sales. Re-use gift bags. Give gift certificates as gifts. This way, you won't overspend. Consider a grab bag if you're part of a large family. Give 'coupons' for gifts. Make them good for car washes, house cleaning, baking, dinners, etc.