As winter wears on and you find yourself spending more time indoors, you may be noticing little things around the house that you normally wouldnt. The worn-away grout in your bathroom. The drafts coming from your doors and windows. Your old, out-dated appliances. Blame it on one-too-many HDTV reruns, but, if you find yourself wondering whether its time to upgrade or not, here are the guidelines: Dishwasher... 9 years. Average cost to replace: $240-$700. If you want to...