When your deodorant spray/shampoo/conditioner is about empty, take it to work in your flight bag. Send it through the scanner. Those wonderful guards get a buzz from removing it, telling you off, and forcefully throwing it into their bin; you save the bother of recycling or disposing of said item. Works a treat at MAN. And EMA. And CWL. Actually at most places. Everyone's happy! And keeps "security" on their toes.