The guest list horror begins!

Finding addresses on anywho.com is pretty hard when you don't know the person's last name. Luckily, this is just one guest (obviously not one of mine or I would already know the last name). I didn't realize that even beyond the horrible nature of writing a wedding guest list in the first place lies the horror of compiling the list and realizing you either don't have the address at all or are missing something like the zip code. Looking for a zip code is ridiculous. I can't find one in particular for a guest for which I have an almost complete address. Do I have to view maps of the city that divide it by zip code and then try to pinpoint the exact little street?! Probably. I would still rather do that than call and ask.

UPDATE: In my late night annoyance, I forgot that usps.com can do reverse lookup for the zip code. I am giving up on fighting any more address battles tonight. Time for bed.