Yellow has to be the cheeriest of all colors - as demonstrated by Mr. Happy, smiley face, sunflowers - even things like lemons and the Cheerios box have a high happy factor.
So when I started thinking about new invitation designs, I decided to get some seriously happy yellow ink. And as I posted yesterday, I'm having lots of fun experimenting with it. But I've also come up with this new invitation that I'm loving right now:
Simple and clean on the front with a bold diamond graphic on the back - and in yellow is more fun that stiff. I also think it would be great to have two different response cards. Encourage your guests to write a poem or draw you a picture, and you've got a great looking keepsake.