It's International Wear-A-Dress Day 2008!
Although, really, to give people more of a chance to participate (and as long as we're creating our own occasions) why don't we call it "International Wear-A-Dress WEEK 2008"?
I made a Flickr group for people to upload photos to, it's here, and I'll try to post great examples next week if people upload them, hint hint. (If you don't want your dress blogged, please tag it DNB — for DO NOT BLOG — when you upload your picture).
I will most likely be wearing this dress.
For more about the genesis of International Wear A Dress Day/Week, see the comments on this post.