Wording according to countries
Perhaps you could adapt more to countries according to their culture. For example I live in the UK and I get things like "send a holiday card", which means nothing to me, we would say "send a Christmas card" instead. The language might be the same but we're not Americans!
Brian Van De Walker commented
I actually liked the Holiday card, it was awesome, but it would have been even cooler if you had labeled it Christmas (since that is the holiday it was for) and had more option (3 to 5 would do), I do think you should add a "don't show me this again" button in addition to the "ignore" button so all the Scrooges stop complaining.
Mark Newell commented
If you want us to try holiday cards, give us some choices. Otherwise, just go away.