I went on a walk yesterday; my favorite kind of walks, actually: A derive. Which I’m guessing is french fora meaningless walk.
But really, it’s the best way to get thinking, get fresh air, and get good photos. Lacking inspiration? Just go outside when the sun is about to set, but still bright enough to cast golden yellow highlighted colors all over the outdoors. Light is an amazing thing, and it’ll turn any old and insignificant thing into a miraculous work of art.