Does Size REALLY matter?

I usually make my cards a standard 4.25 x 5.5 but lately I've been enjoying the 5.5 x 5.5 size. So my challenge for you today is to pick a size of card you do not usually use...or a size you've NEVER tried before...and create! Some examples: 3x6, 4x4, 5.5 x 5.5, 6x6, 8.5 x 5.5...use your imagination!
Don't forget to email me an attachment of your card so i can feature it on my blog!