An interview with Mike Chalmers, the "Chief Buyologist" at Buyologists, a consultancy that helps businesses reduce their overhead costs and save on major purchases by finding and negotiating the best possible deals. Mike trains and advises business people on negotiation strategy and writes about negotiation for various newspapers and magazines. In this interview, Mike shares practical but often overlooked ways to improve the buying side of your P&L, and the power of asking simple questions of your suppliers.