One thing that has worked for me is to create a challenge, for example take a lens I use less frequently and go out to take photos with just that lens. For example for for a walk in the woods/local town center with a 200-600, instead of a wide angle or normal lens that you would most likely use, or take a really wide lens like a 12mm. Beside being fun, you will force yourself to look at the surroundings in a way you did not before, especially if it is a location you have been to many times.