I first saw a card done like this by Cambria on Splitcoaststampers and I immediately fell in love.
It is a 3 1/2 by 3 1/2 trifold card, where the triangle pieces meet up to close the card.
The next photo probably makes the fold more obvious. The ladies at my craft club made some beautiful cards and I am very proud of them!
I finally found a way to use the giant circle punch, it goes so well with polka dot posies set.