I made a complaint to security office already. The security answered that there are only two cleaners for this police quarters. The cleaner will clean each floor once for a week. Now, it improved already.
My big daughter (Tavy) : 2003-09-24 (3.14 kg)
My second son (Nok Nok) : 2007-07-25 (3.56 kg)
My third son (Yu Yu) : 2008-08-21 (3.46 kg)