I was in a stationers, asked how much the cards were, got told they were so much for a pack of ten, had to say "That's no use. I haven't got ten friends" Sad, eh ?
I do find that I get cards from people who I don't really know, relatives I never see, who express no interest in me for 12 months and who I don't like anyway, and various people in business who send them out for PR. When I pruned the list to people who are friends and who would appreciate a card, it went from over 60 to 8. Hardly worth getting the Letraset out.