There are times when I find myself shooting the same stuff or using the same lighting setup over and over again. Repetition helps to improve and fine-tune my skills, but sometimes it just feels boring and degrading, let alone useless for my portfolio.
But as much as I dislike feeling stuck and repeating myself, I now realize how such times in fact help me to become a better artist and shooter. It's usually the desire to entertain myself and experiment that leads me to new personal artistic discoveries. It's when I'm bored and want to "spice it up", I start searching for new lighting ideas, tricks and techniques.