I am just checking on something they told me at Guitar Center where I bought my guitar...they told me to always use the Humidifier water bag and sit that in the strings (distilled water) after each use. Also to tune your guitar before playing each time. I have been doing the humidifyer, but I have not always tuned... I am not on stage and so far it has sounded just fine. However one day it did not sound fine and I KNEW it was out of tune. SOOOO do you tune before each use? Humidfy after each use? (Acoustic Guitar question)