Much like Rene, I keep my iPhone pretty much bone-stock on its first Home screen. I do this because I've reset it frequently enough that I just can't be bothered to spend a lot of time customizing it, and like Rene, I use it occasionally for product shots when reviewing stuff at iMore and want it looking as fresh-out-of-the-box as possible.
I don't like a lot of messy app clutter on my iPhone's Home screens. I pretty compulsively find places to put apps I've downloaded, because I don't want to have to flip through pages finding what I'm looking for. My most frequently used apps I access by just double-pressing the Home button and flipping through pages until I find what I'm looking for. Everything else has its place.