I tried to stick to one format, focal length or whatever, but it doesn't work for me. My eyes are detecting a scene and my brain screams out for a certain look or focal length. I found out that I am not this consistent type of photographer who does a series of photos that all have the same look and feel. It is nearly impossible for me.
But if you are a careful reader of this blog you know that there is nothing wrong with you. Don't follow any rules and take everything to serious. Many good tips and thoughts from other photographers can help us getting new inspiration and getting better every day, but you know what's best for you. Just follow your inner voice and do what your love. That is the key to happiness...