Chic 'n Scratch do so I thought I would give it a go. I had trouble finding the right sized envelope then wondered what I could fit in it. What I did find was what I believe to be an A5 sized envelope (230 x 160mm) which worked really well.
This is a really quick and easy project and it pays to watch the video Angie has made. As my envelope was way too big to emboss I covered the front and back with paper instead.
The great thing about the size of this envelope is it comfortably fits 4 normal sized cards & envelopes in see through bags. This makes a super thank you gift.