1. Use a folded up newspaper or magazine and whack away.

2. Flitter a tea towel or rag at them on a wall.

3. A heavy hard-back book will crush the little critters.

4. Fly paper - gross but effective.

5. Buy a cat! The little moggy stands on them.

6. Set a honey trap using a jar and some sugar.

7. Apply some double-sided sticky tape to the wall.

8. Fly Sprays can be bought but are chemically unsound.

9. Electonically shock them using light. Expensive.

10. Flick them with your index finger and thumb.

11. Wait until the fly is on the window as they are easier to kill.

12. Set up traps by the light as flies like bright lights.

13. Fire elastic bands at them when bored at work.

14. Use a flame thrower

15. When fly is in the air clap your hands.

16. Have a game with kids most flies killed wins.

17. Let wasps in the house. They love flies.