I have always maintained writing a real letter and keeping real photographs is important, today it's all texting and photos on our phones( which I'm also guilty of!) I have just recently became a gran and I wrote a letter to my granddaughter the day she was born, telling her how happy she has made me and that I love her already. I've written two more letters and she's only 8 months old. I've asked my son to keep the letters in a box for her to read when she's old enough. ❤
I also leave notes/letters for my partner either in his work bag or trouser pocket or in a coffee cup. He loves it and his reaction is worth it!