Their special day only comes round once a year, so show them how flippin’ happy you are they exist with the perfect birthday card. Celebrate their arrival on this planet, which just wouldn’t be the same without them. Show them how much they mean to you with heartfelt words, birthday wishes and a declaration of awesomeness. Remind them with a birthday card that you don’t just think of them on their big day, but all year round. Cheers!