Winter is one of the toughest seasons on your instrument. Moisture – and mostly a lack of it – can present moderate to large problems. Temperature and humidity fluctuations bounce between outdoor extremes, indoor climate control, and the "in-between" places like your car or on the bus. These extremes and constant changes can cause issues that damage the bridges, tuning pegs and strings. They also affect the wood body of the instrument, causing it to warp or crack.