I've tried to be organized with my DVDs. Some of them are fairly well organized. But since I've run out of space on most of my shelves, I have stacks of DVDs here, there, and everywhere it seems. And a few stacks of Blu-rays. I think I might be able to fit another shelf in by the original shelf...now I just have to see if the one store still has them. I think it is a different color, but I don't really care. Having another one that size - it is supposed to hold like 500 I think - will really help. I might even have extra space for a bit again.
I do have my tv show sets on their own shelves and my animated movies on their own shelf. Everything else is alphabetical. Well...it is supposed to be alphabetical.