Which bin for greetings cards?
Usual answer in the UK
Recycling Mixed recycling bin
Plain paper cards go in paper recycling.
Common mistakes
Cards with glitter, foil, batteries or badges go in general waste. Tear off the decorated part if the rest is plain.
Does every council do this?
Most councils follow the answer above, but bins and sorting rules are set locally, and a few councils still do things differently. If your bin has a sticker, or your council sent a leaflet, follow that. Enter your postcode to go straight to your council's guidance.