A trash can is a trash can. Hidden generally means in a cupboard or closet.
Look at the trash placement more closely in your office and bedroom. His office-keep it out of his good directions. Keep it hidden in your bedroom.
People generally don't have a garbage receptacle in their living room, so for the rest of the house, look at the Qi flow as it comes into the house and moes throughout. Keep the flow from dumping into a garbage can.
Much Love, Shawn
