>First you have to figure out which table and why keeps increasing in size. You can start by running stored procedure from http://blogs.technet.com/mdegre/archive/2009/10/14/determining-sql-server-table-size.aspx to see the size of the tables in the DB.

Here is the result. See the attached file. Basically, it seems the index is taking a lot of space. This is probably where the problem is. I see also that only two tables are subject to have space reserved for them. Do you see something in there that could be addressed?