With cold weather here, you may have a small cottage, weekend home or even a spare bathroom that rarely gets used during the winter months and may not be adequately heated. If you want to prevent pipes and toilets from freezing and bursting, do this to winterize them: Buy a bottle of nontoxic propylene glycol antifreeze solution (the kind sold for RVs) -- not the regular antifreeze used in cars (which is toxic). Pour a small amount of the antifreeze down the drains and toilet. It will protect your plumbing and fixtures all winter long. Come spring, just flush and turn the water back on.