buckle up. with the tax filing season pretty much upon us, a list of the common most tax filing mistakes. the top of the list, people forgetting to sign their returns. duh, you don't want to do that, right? a "forbes" magazine list of the most affordable cities putsoma in the top. it is based on housing prices, the job market and cost of living. the other cities in the top five are buffalo, detroit, indianapolis and cincinnati. sandra bullock and ryan reynolds share the top spot. they got tongues a-wagging when they were seen on new year's eve when seen at a texas restaurant. are they an item? it depends what tabloid you read, but my money is no, they're just good friends. katy perry and her hit song "firework" returns to the hot 100 chart. the fourth week at number one.