In an effort to save time and money, and to keep the house clean, I have found that a couple of times a year it is a good idea to vacuum the ceiling and any nooks. Using the extension hose on the vacuum, I vacuum at the ceiling to remove any dust, cobwebs, bugs, pet hair, etc. Then, I vacuum all of those nooks and crannies where dust likes to hide. I, also, vacuum the ceiling fan blades, the tops of cabinets, any place where dust and other stuff likes to settle. This reduces the allergies that my family experiences and keeps my heating and cooling system filters cleaner longer.