You know how the "Contacts" utility (formerly "Address Book") has separate fields for street address, city, state, zip code, and country?
And you've probably figured that, if you want to copy and paste an address, you have to do each of those fields individually, right? 4-5 separate C&P operations? Turns out not. You can just copy the entire original, even if it's on a couple of separate lines, like this:
and when you click in the "Street" box and do a paste, "Contacts" is smart enuf to parse the address out into the proper fields for you with just a single operation: