Caring for your guitar is easy and involves nothing more than common sense. Just because there's nothing much to do in order to care for your guitar, it's something that shouldn't be avoided. Just a little regular maintenance and cleaning will keep your guitar playing and sounding good for many, many years to come.
Environment
Since guitars are constructed from wood, one should pay attention to the environment in which the instrument is stored and played. Strong direct sunlight can cause the guitar to get excessively hot, and in at least a hollow-body guitar, can actually cause the wood to crack. Also, a guitar should never, EVER be stored