I just spent the morning rounding up and sorting all my manga. I normally keep them tidily arranged in my cupboard and on my shelves, but my brother keeps pulling them out and never returns them the way they were. So today I went to his room to retrieve all the manga he took, a total of 30 volumes.
As I sorted out my manga, I made a note of what I have so that I don't end up buying duplicate copies of something. So far, I've bought 4 or 5 duplicate copies which I sent to a friend.
In total, I have collected 42 series and so far I have 274 volumes of manga. That's over $3500 worth of manga :O