I was completely inspired by Kathi Carlson's fabulous boxes here, here, and here. (Thanks Kathi!) This will be the project for my club this month. You can find the instructions to make the box here.
The cards on the inside are 3.75"x3.75" and are almost the same as the larger cards I posted below. I used the CD from the awesome Originals Book to make the envelopes. (Did you know that the Originals Book comes with a template CD? It is fabulous!) I used the 3"x3" envelope template and printed it out at 125% so my envelopes are about 4"x4". They fit perfectly in the box. I like using CTMH's B&T Duos to make envelopes because they show a different color on the inside.
Wouldn't this make a great gift?
All supplies are CTMH:
Stamps: Aspiration, Celebrate Life, Code It
Papers: Unforgettable Paper Packet
Inks: Chocolate, Sorbet
Other: Chipboard, Organdy Ribbon, Foam Tool, Pewter Designer Brads