cultivating a card collection

I’m A big believer in stocking up on cards so you’re always prepared. I have them organized by category in a shoe box in a cabinet. Snything that catches my eye but especially ones for teachers (three times a year there are gift-giving opportunities), sympathy because inevitably a loved one or friend loses someone they care about, and good bday card for boys (or girls) who are into things like cars/dinosaurs since I naturally don’t gravitate toward those topics!