I have seen some pictures of envelopes made from magazine pages. So I googled envelope folding, and decided I was too lazy for all that nonsense. So here it is, my one-cut envelope how-to.
Scrap paper (optional; to make a place for the addresses)
1.Cut your magazine advertisement in half hamburger style. (Yep, it is too early for me to figure out lengthwise vs. width-wise.)
2. Fold the ragged edge down, leaving an inch of the bottom layer showing.
3. Using just a small line of glue, secure the sides closed. Fold the leftover inch down to create a flap.
Note: You could be done at this point. I chose to make address labels.
4. Cut rectangles of scrap paper (just large enough to write an address on). Glue one each to the front of the envelopes.
Ta-da! The envelopes are made. I made 8 in less than 20 minutes, including gathering all the supplies.
Envelope fronts Envelope backs
12 of 52 envelopes done.