Keep the Dishwasher Clean
When your dishwasher no longer gets your dishes clean, a food-filled filter is most often to blame. If it's clogged, water can't make it to the spray arms to clean the dishes in the top rack. The fix takes two minutes. Simply pull out the lower rack and remove the filter cover inside the dishwasher. (Check your owner's manual if you can't spot the filter.) Then use a wet/dry vacuum to clean off the screen. While you're there, slide the nearby float switch up and down. If the cover sticks, jiggle it up and down and clean it with water.
Don't Slam the Doors!
If you continually drop or slam the lid to your washer or dryer (top or front load), you're going to break the lid/ door switch. That'll cost you at least $100. Avoid this repair by lowering the lid and gently closing the door.
Clean Window Air Conditioners in Spring
A window air conditioner can hold some nasty surprises after winter storage. Aside from harmless stuff like dust and dead bugs, it might contain health threats like mold or mouse droppings. So before you lug it to a window, vacuum all the surfaces, especially the fins on the exterior face of the unit (that's good for efficiency and performance, too). Also pull off the cover panel, and vacuum and clean the foam filter. Finally, plug it in and fire it up. Better to blow dust around the garage than your bedroom.