How can I properly care for geraniums during the winter months to ensure they survive and thrive?

To properly care for geraniums during the winter months, keep them in a cool, bright location with good air circulation. Water sparingly, allowing the soil to dry out between waterings. Avoid overwatering and protect them from frost by bringing them indoors if necessary. Prune back leggy growth and remove any dead or yellowing leaves to promote healthy growth.