Sorry for using slang. What I mean is have you tried using your knowledge from one field (say web-dev) and try to see if you can use it for your other field (photos)? For example, you could maybe use the information from your photo sales, take the numbers and put them into some tracking software and use the information to help you decide the next pictures you should take. (Just like you probably look at your web analytics to see what type of site to build and how best to promote and sell it)