I love making 3x3's, but I never use envelopes. I usually make them for gift cards, and my theory on any hand made card that I put on a gift is to go "envelope free". I figure if I spent the time and effort to make the card to put on a gift, I'm not hiding it in an envelope. I want as many people as possible to see my hard work ;)
I do have all of the SU! envelope templates, and love them tho
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