If you’ve ever accidentally bought the same album, book or DVD twice because you forget you already had a copy at home, then to be honest, you have too many albums, books or DVDs. (Seriously, you don’t need to serve as a redundant backup for the Library of Congress.) But if you just can’t help yourself, and don’t want to carry long lists of what you already own, the Groqit will serve as your own personal librarian. It’s basically a pen-sized scanner that reads, stores and organizes barcodes from most consumer products. So the next time you’re at the store and aren’t sure if you already own a particular item, you can just scan the barcode and the Groqit will let you know if it’s already in your collection.