Boring days are the most important days
Making an image on days when everything falls into place -the right conditions, the right place, the right time, the right mood- is easy. Those days hide a big danger, though: when one of those elements is missing, we might think it's not even worth trying to make images.
I love to make images in the fog or even in severe weather conditions, but most days are just sunny, clear, boring. I have a hard time finding the motivation to get out on those days because I know the chances to make a "good image" (an image that fits my style) are very slim.
Those are the most important days, though, because they are the ones that make you a photographer.
First, they show the world as it usually is - in order for us to see the extraordinary we need to sense the ordinary first.
Second, they force you to think out of the box. In a sense, a foggy day is bad news to me because I usually end up creating something similar to what's worked before. A sunny day, though, is unpredictable: unlikely to generate great images, but potentially the spark for new ideas and projects. It was on some of those boring and flat days when most of my ongoing projects were born.