I have proof that at least one person besides my mother reads my blog - a non-family member commented on my Korean Air playing card post. I want to point out that you can get at least one other free thing - The Jeju Island Water Spray bottle. They pass these out in the business class cabin, but I'm sure you could request on in economy class. Just tell the stewardess that you have a severe skin condition and need to frequently moisturize, and I'm sure she'll bring it:
By the way, this is an older style bottle, about 5 or 6 inches tall. I've noticed on recent flights they've switched to a shorter, miniature version.