Why is there blue exhaust from my 2002 Camry XLE on cold start?

Thanks for your response. It gets driven about every 2 days -- sometimes more often. At least once a month it gets driven 3 hours in one day / highway driving. About how much in Parts and Labor would it be for Valve Steam Seal replacement?

Frequency of driving has no relevance .. Extended park is simply being parked 'long enough' for the oil to seep into the combustion chambers (cylinders) again .. Best to call 'local' repair shops for price estimates and confirmation of my suspicion .. However those symptoms sure are indicative of valve seal oil seepage. As previously stated, until it gets to be a real problem, it won't hurt anything to leave it as is! I know this from 'many years' of automobile troubleshooting and repair .. Plus I owned a 2002 Camry and it was doing the same thing .. Car had over 230k miles on the clock until it was totaled in an accident... Nary a significant problem with the engine - OR - the whole vehicle as far as that goes .. Good, practical vehicles!