...toilet brushes
I loathe them, they're vile germ-infested sticks of evil, but he says "we need them". Only because you pebble dash the toilet, pal! I cannot hold my head high on Mumsnet if I have these monstrosities in the house. Apparently "they're gross", is not a reason not to buy them - how do I convince him not to??
Disclaimer - I clean our toilets very regularly, so it's not like they're actually left dirty for more than 24 hours!