Hose... not 'Ho's
A short length of garden hose glued in the bin and sticking out the top would be excellent... but better still, dig out that old air compressor from the garage, and pop the hose from that down the side of the binbag... then turn it on... No need to worry about suction between the bag and the bin... no need to strain lifting the heavy bag out the bin... and possibly no need to worry about baked bean & gravy stains on your carpet anymore. (Walls and ceilings *may* be a different issue?)
(Nozirrah turned left instead of right and ended up here on, Wed 4 Aug 2010, 6:47, Reply)