I work in retail. It's easily something I get sick of. One thing I can never get sick of though are parks . They're beautiful, they're peaceful, and there is just so much in them that you just couldn't get out of walking through a mall. Crowds of people and name brand stores lined up one after the other after the other, definitely not my environment of choice. Walking along a quiet, foresty trail where all you hear is the crunch of leaves beneath your feet and the ducks in the distance--it somehow carries so much more life than those masses of people and passerbys.
A stroll in the park does good to the soul. Especially when done with the perfect person.