Aargh, recently moved into a ground floor flat - never stayed at ground level before 
and there are ants starting to appear in the house! Just flicked one off my arm this minute! What can I do - I'm assuming (hoping) they don't bite but how to deal with them? I have visions of them crawling into my ears when I'm sleeping 
I've seen them crawling about in the garden but now realise they can obviously get into the house easily.