Whoops! I seem to have ordered lots of 12 x 12 paper pads before using up my considerable supplies, so spent a couple of afternoons making gift bags.
Pictured are some I made from a roll of remnant wallpaper which is also demanding to be used.
A simple formula: trim paper to 12” wide by 7” high. Score along the 12” at 1/2”, 2 1/4”, 6 1/4” and 8” then turn the paper and score at 3/4” (for a top reinforcing fold) and 5” (for the bottom) Trim out the score lines and tape as shown. bottom tape not shown.
I used red liner tape for strength and popped in a piece of card to reinforce the bottom before punching holes to thread ribbon or cord for handles.
For the 12” by 12” sheets I used the trimmed spare to make labels and bows on the scan n cut.