Fire officials across Rhode Island say it's never too early to think about holiday safety. Officials say Christmas tree sales will be starting up soon and it's important to water natural trees daily and keep them hydrated. It's also critical to make sure the tree is not blocking an exit and is at least three feet away from any heat source like fireplaces, radiators, candles, heat vents or lights. Firefighters warn not to overload extension cords with strings of holiday lights.