Hi I'm a relatively new guitarist, and recently bought a new guitar. It's pretty nice and I'm hoping to have it for a while, so I'm wondering what kind of measures I should take to keep it in good condition; for example, humidifiers- what's the deal with them? Polishing/cleaning the fretboard? Stuff like that-, you know, the little stuff you learn over the years. My guitar is a Simon and Patrick solidbody, with a rosewood fretboard. It's made in Quebec, Canada, which is good because the wood is native amd less likely to have problems with environmental concerns, or so I've heard (I live in Canada also). Any advice would be appreciated, thanks.

James