So sometime ago I started to research killing them, somedays I can flatten 3O in half an hour.
There are many flytraps available but they are also easy to make.
On my last visit I invested in a Red Top Fly Trap. www.redtopflycatcher.co.uk
It didn't work well until I'd added some dried yeast, now it's great.
If everyone 6.97 billion humans killed flies each day there might be less flying around, so if some clever-**** can do the arithmatic how many flies does each human have to kill daily......

I bet our friendly [Word Censor] censors clever --- sounds like mick.