Happy birthday, sis. You make ordinary days brighter. the perfect words to write in your sister's birthday card

Stuck on what to write in a sister's birthday card? Keep it warm, honest and a little personal - tell her she brightens your everyday and that you're grateful to share this life. For more inspiration, add a funny line that'll make her snort-laugh, try a tender note for your little sister, or send a simple birthday text she'll treasure.