How often should I applaud my husband?

As often as you can!
You should applaud your husband as often as possible. Everyone loves to be applauded. There are so many benefits that come with applauding or appreciating your partner as often as possible. These benefits will help improve your relationship and your husband.

This helps your relationship to grow, it strengthens your relationship; it creates a spark in your marriage. Applauding your husband will make him feel good about what he is doing, it will make him feel better about himself and also urge him to go on with new vigour.

I find this a very charming question, suggesting a wife attending every performance of an actor's year. If he's not in the theatre, by all means applaud some unexepcted action such as sweeping the snow from the path before you have to walk on it on your way to work; or returning home with a promotion.

If you mean applaud every time he picks up a cup to take it to the kitchen, then no! I am sure he is not so pathetic that he needs his wife to praise every breath. How many times do you expect him to applaud you, and what for?