We get quite a lot , from work colleagues of my husband and also our neighbours as well as our local church (all delivered by hand), but we rarely get any through the post because our family and friends send them electronically now..
It's hard to say how many paper ones we get now, a lot less than years ago..maybe around 50 or so..not sure tbh. We set them on card twine all along the picture rails and hang them up, and also put some on the Mantelpiece