Doesn't anybody say "I 'm sorry" anymore?

I have gone to 2 Hallmark stores, 2 drugstores, and 1 grocery store in search of a generic "I'm sorry" card, and found NOTHING!

Yes, there are a few "I'm sorry, darling" cards for the spouse, but not even a category where the general "I'm sorry" cards would be . I don't get it. Surely there are plenty of others out there like me who blow it on a weekly (if not daily) basis, and need a card to tell the other person "Yes, I blew it. Please forgive me." or even "OK, we're never going to see eye-to-eye on this, but can't we still be friends?"

Has our society sunk so low as to offer an abundance of cards from the dog, cards congratulating a divorce, sympathy cards on the death of a pet, but no cards admitting we're wrong and need forgiveness? I guess so...