The removable plastic bit in my kitchen bin has a permanent smell of stale rubbish - and I get a whiff of it when removing the binbag every couple of days. I tend to give it a quick once-over with a wet wipe, but I was wondering if there's any way to get it smelling nicer for longer? Would Zoflora do the trick and if so, how do you use it? Is it just a question of dripping a few neat drops in the bottom and letting it work its magic? I've never bought it before...