I've been there a few times over the course of about 10 years. My strategy is to seek out a new field within tech which I haven't yet explored, and which is in

I've been there a few times over the course of about 10 years. My strategy is to seek out a new field within tech which I haven't yet explored, and which is in no way related to my job (web dev). Currently I'm trying my hand at building an underwater ROV. This combines my background in programming with the field of robotics, in which I have little expertise but oodles of interest. It hasn't directly helped me in my "actual" job per se, but it has given me new channels to explore that keep me thinking, learning, and experimenting. That's the important part. Of course, you don't need to stay within the field of tech to find something that motivates you. It just happens that robotics (and the ocean) is an old passion of mine that I haven't even nearly exhausted.