My most recent lie (and clever) that comes to mind is the cover stories I had to create on two consecutive nights when the tooth fairy forgot. As those are lies to perpetuate a lie (the tooth fairy herself) do they count as half? or double? Oh yes, and there is the candy fairy lie to which I am very attached.
I'd especially love to hear from you: what is your policy on these sorts of deceptions? AND, do you adhere to your policy?
I would have to confess that my policy is that I oughtn't and my practice is that I do.