Loving my new collectorz.com comic book collection app.  For around $50, I was able to input my books in a flash (instead of typing everything by hand), and export my collection to a website.  Now when I'm in a comic book store, I can pull the page up on my phone and see what I own before I make a purchase... no more accidental duplicates!  No more paper lists!  I entered my 60's - 80's comics and uploaded it.... I still have four more boxes to go.  Check it out.

http://www.davidbielski.com/comics/