The amount you should give your housekeeper for Christmas depends on your personal relationship with them and the nature of your working relationship. If they are a close friend or family member, you may choose to give a more personal or sentimental gift. If they are an employee, you could consider a holiday bonus or a gift card to a store of their choosing. Ultimately, the decision is up to you and should be based on your budget and the level of appreciation you want to show.