I haven't had time to go through all of them myself, but Kelly over at Kelly's Korner put up a link for everyone to add their cleaning tips today. You can check it out here.
My personal cleaning tips:
~ Use a lint roller (I have the sticky paper kind that rip off a sheet at a time), to clean your lamp shades. You will be amazed how well this works especially if it's been a while since you've cleaned them.
~ An old "White Glove" trick from college, use rubbing alcohol to clean hairspray off door knobs and other surfaces in your bathroom. (Not sure how that would work on wood?? We always had metal towel racks, etc.)