I have a better idea: Take a digital picture while commuting, show it to the person sitting next to you on the bus/train, ask for a 2 line description on paper and ... bing! Pretty much the same result. Except the internet wasn't used.... Strange how using the internet for someone else's eyes makes a photo's description more interesting than your own...
You might even strike up an interesting conversation with a real person about photography while you're commuting...