Explains seven bad habits that attract flies into your home, from how you handle rubbish and recycling to overwatered houseplants and lingering washing-up. During a hot UK summer, open windows, bins, fruit bowls and pet areas combine with everyday routines to create perfect conditions for houseflies and gnats. Open windows, sticky heat and a constant buzzing in the kitchen make flies feel inescapable this summer. High temperatures speed up the breakdown of food and rubbish, so smells travel further and attract flies from outside. Seven bad habits that attract flies into your homeHabit one is pouring liquids and sticky leftovers straight into the kitchen bin.