Valentine's Day cards are a staple of the love-filled holiday, a tradition that may have started after an imprisoned saint sent a love letter to a young girl who visited him often.

It can prompt ideas for gift-giving, organize holiday finances, and even take a huge load off holiday correspondence. Even Santa Claus himself turned to AI for help with letter writing this December.

We asked stylish people about their favorite stationery, including note cards, letter papers, and postcards from Smythson, G. Lalo, Papier, Maurèle, and Fotofolio.