Cards sent to the seniors' residence

My father-in-law lives in a seniors' residence in our city.  During COVID, residents haven't been allowed visitors.  I went through my stash and donated about 1,000 cards.  First, in November, I sent 350 "Thinking of You" cards to the residents and 250 "Thank You" cards to staff.  In December, I sent 350 Christmas cards to the residents.