I was at Subway this weekend and noticed they had cards on all the tables, for that heart promotion. The fine print on the cards says they will only donate up to $50,000 for the $1.00 tweets. Subway.com says there are 24,888 Subways in the U.S., so if they printed up a stack of cards for every single location, plus shipping, they probably spent $50,000 just for printing the cards.