"The idea for this mod was born when I was assembling a computer: I noticed that the distance between the motherboard's s-ata connectors and the HDD was very short and due to that I thought it would turn out really ugly if I'd just use a full length 40 cm S-ATA cable. I decided to make a custom S-ATA cable for this case - The Baby SATA was born."
You can check it out over here. I think this may be one of the first guides on the Internet that learns you how to make Serial ATA cables shorter.