A reward to wife.

Just a morning kiss on the forehead with a smile expressing that how much you love her. Keeps her lively and energetic throughout the day. A hug before you leave to work makes her feel safe in your absence. A call for at least a moment in the afternoon before you have your bite will keep her through, the rest of the day.

When you return back home in the evening show that eagerness of missing her throughout the time you were away from her.
End the day by thanking her for being there for you which motivates her in making your life beautiful and home the wonderful heaven on Earth.

Instead of appreciating, acknowledge the art of her restless job of working at home without holidays and break. Not even a particular time to start off and end on something. Try to get into her shoes to understand the better her.

Do you think this reward is too expensive to present your wife?