The legal professions have to fight with the flood of documents in their offices every day. There is no doubt that the hard copies of the cases and references have to be well indexed and stored for further retrieval. However, due to the high rental cost in Central Business District, it is not cost-effective to put all the box files in the office. On the other hand, keeping those files in warehouse may arouse the problem of wastage of time when some documents are urgently needed for a court case. Time is money and efficiency is the key to succeed. How can these problems be solved?