Speaking of fermentation, I recommend that anyone who enjoys bread has a a sourdough starter. It's one of those things where a tiny investment of time (a few minutes per day, or less if you're storing an already-started starter in the fridge) makes for a large payoff of great-tasting bread.
This is probably the simplest and easiest guide I've found, and it's the one I've used to greatest success: http://slice.seriouseats.com/archives/2010/11/how-to-make-so...