I decided to spread Bitcoin as a Christmas gift. Here's an oversize Christmas card I came up with to give away Bitcoin paper wallets, and help people understand the basics of what I'm giving them (I figure most non-Bitcoiners are stumped when they receive a paper wallet). Hopefully the gift and explanation will stir an interest with a few people who have yet to explore Bitcoin.
EDIT Dec 12, 2013: Here are downloadable files (with the typo "know one knows" fixed):