What is everyone doing with their cards

I remember when I was a child I remember my mom saying you should save greeting cards because you never know when its the last time you’ll get a card from that person. Idk what my husband’s excuse is but he saves all of his too. I’ve always just kept them in a box in our office closet but now this office needs to be turned into a nursery. What the hell am i doing with all of these? Do people just throw them away? Is there a cool way to organize them?