A husband can surprise his wife by taking care of all the household chores for a day without her asking. He can also write her a heartfelt letter expressing his love and appreciation for her. Or, he could arrange a weekend getaway to a place she has always dreamed of visiting.
One way is to plan a surprise date night. He could book a table at her favorite restaurant or arrange a picnic in a beautiful park. Another way is to give her a handmade gift, like a scrapbook filled with memories of their time together. He could also surprise her with tickets to a show or concert she has been wanting to see.