Now that you have your Christmas monies are you going to upgrade on some of your tools? Some of us are lucky enough we can purchase/replace accessories and tools (stethoscopes) on the dime of the employer. But many of us either have specific preferences, or we don't have the luxury of a benevolent employer--we have to buy some additional stuff ourselves. What are your recommendations for stethoscopes? Why? Background noise reduction? Ones that don't feel as if they're squeezing your brains out? Share your thoughts with the community.