One of my co-workers has been planning to plan her daughter's "Sweet Sixteen" party for months and we've been discussing my involvement in the party invitations throughout. My original visions of custom (paper-based) invites went out the window about a month ago. A few days ago, my plan to create a Flash-based invite was also scrapped. Today, with help from some design elements from iStockPhoto, I created an emailable invitation in a very short amount of time.
It's not something I'm incredibly proud of, but I did save (myself) some time, (the world) some trees and (my co-worker) some money!