And on a sidebar, the benefits of picking up parcels and doing some shopping at local stores down the block instead of at big boxes:
Me (at post office counter in drug store): Do you need to see I.D. for this one?
Post office clerk (the fun one whose hair is a different colour every week): No need ... I recognize you.
Me: But I could be my evil twin!
P.O.C. (without a pause): Well, when you come in later, I'll tell you your evil twin was already here.
You know, it's so sad when the zombies in the post office line blankly look at the two silly people as if they're from Mars ...