As Sinsull mentioned, toothpaste on a rag is a great mild abrasive for cleaning water spots on wood surfaces or cleaning the grunge off guitar frets. Another tip - never use furniture polish with silicone in it, particularly on musical instruments. The silicone gets in the wood and keeps it from aging properly. Lemon oil polish is the best.

Special for all you bourbon fans: bourbon and apple juice is really tasty. Bourbon with cran/raspberry juice is also good. And "good whiskey never lets you lose your place". Michael Murphy said that in Cherokee Fiddle and it's pretty much true.