Conversation I just had with DF about this topic:
Me: "So, what do you prefer, gift bags or gift wrap?"
Him: "I don't know - I guess gift bags are more environmentally sound, but I don't see the need for any wrapping on my presents, really."
Me: "Fine, then for your next birthday present I'll just stick a bow on it."
Him: "Use a purple one, it'll bring out your eyes."