Love love love the appearance of all sorts of different fonts of typography that appear though out the booklet. The tag itself had me at hello. Maybe it's since I have always wanted a date stamp of my own.
As if the outside of the invitation wasn't particularly awesome enough, just wait until you see the inside. Each and every page was personalized. I'm telling you, the amount of detail that was put into this wedding invitation is outstanding.
My favorite page has to be the "Reference Guide...For Tying the Knot," For obvious reasons. How clever.