If you have pans or plates with a strong fishy smell (example herring) put the bowl upside down in the grass and a few hours after the air has gone.
A friend of mine gave the following tip: Buy a disposable air deco air and fill it when it is almost empty with a layer of sweet smelling detergent and water. Especially because water that evaporates. So you much longer to enjoy a nice smell in the house. You can continue to fill it. Thus the expensive purchase price is not so expensive anymore finally!