Fantabulous Cricut Challenge Blog: Quick Tip Tuesday - how to cut cards & envelopes using Cricut
Stamping T! - Card in a Box Fits in a standard C6 envelope
Lovely card for using with a battery tealight
Here are some of the most popular standard envelope sizes. This is useful information if you are planning to make your own greeting cards.
Envelope design- I'm using this tomorrow as we write letters to our reading buddies thanking them for helping us become better readers!
Envelope templates (C6, C7, C8) // String-tie & standard designs
designerstoolbox.com, a great resource for folds, envelope sizes etc
standard envelope and enclosure sizes
Pop-Up Box Card (step by step + dimensions + lots of pics and video link) by Dina Kowal