Keeping your kitchen clean is very important if you want to keep those insects away. So here is a cleanliness routine you must follow. 

• Clean your gas stove every night before you go to bed. Remember cleaning a gas stove after long periods makes it more difficult than ever.
  
  
• Cover the dustbin every night and make sure to dispose off the waste first thing in the morning.
  
  
• Make sure to clean the sink drain every week and use a disinfectant too.
  
  
• Defrost your refrigerator and clean it thoroughly at least every fortnight. You can use your weekend for that. Make sure to either finish or give away all leftovers so that you can stock the fridge with new stuff.
  
  
• Every month go through you refrigerator, cabinets and other places where you store food items and check expiry dates on all packaged stuff. Get rid off everything that has expired. You don't want to use them even by mistake.