Vacuum registers and vents regularly-

Oct 27

Written By Frank Caputo

“ & don't let furniture and draperies block the air flow. Inexpensive plastic deflectors can direct air under tables and chairs. “

http://www.powerhousetv.com/Energy-EfficientLiving/Energy-savingsTips/027471

airflowventsregistersvacuumcleanmaintanence

If your home has a boiler system, avoid covering radiators

Don't set the thermostat higher than you actually want it.