Finally, when I already put poster on the wall "THANK YOU FOR NOT LITTERING" with green background. I reduced 75% of trash that belong to children in the class and parents at waiting room. No food anymore on the floor, but there are still some used tissues and used plastic glasses on the floor. Well that's ok, it can be cleaned quickly. If there's food on the floor.................... yackkkk......!!!!
Hmmmmm...............but still left 25%, what can I do with that ?......hmmmm........wondering, have to find another ideas. Perhaps I will put the "talking trash bin" that like the Japanese has....... :) or should I put CCTV camera on every corners................ mpppiuuhhhhhh...........
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