Sometimes the cure is just to disconnect from everything, even if just for a few hours. I managed to find a spot to camp, about 40 miles from Flagstaff, where my phone got absolutely no reception. No service. Zero bars. I couldn't check my email or update Facebook even if I wanted to - and that was very freeing.
I spent some of my time reading, and the rest taking pictures. Not much turned out from around the campsite, but it felt good just to shoot. No pressure, no clients, just letting the creativity flow.