There are half a dozen big black flies in my kitchen and they are making my skin crawl! Not sure where they've come from but suspect from the direction of the wheelie bin, which is due for collection in a couple of days (fortnightly collection). I can't get rid of them!
Every time I open the doors or windows then more seem to get in. I don't fancy spraying toxic fly-spray around my kitchen, and nor do I really want to hang up a bit of manky fly paper, so are there any other ways of getting rid of them??