Begin by cutting off a piece of wrapping paper to make into your bag. For reference, the red stripe bag was made with a 10? by 29? piece of paper.
Next, lay the paper so that the longest side is horizontal and fold in the sides to the center of the paper and tape down this seam.
Now, fold the bottom section of the wrapping paper up about 3-4? to create a fold. Then unfold the paper and open the bottom of the bag and fold in each side to make each side a triangle.
Finally, fold the top and bottom of the flaps so that they meet at the center and tape across the seam.
Now all that is left is to open the bag at the top and add your gift.