We used to make beach towels with their own bag. Basically the pocket or bag part is 1/3 the width and length of the blanket. Straps or handles are attached to the pocket part and the blanket part at the same places. Attach the pocket and then to bag it, fold in the blanket, opposite of the bag/pocket, into thirds and fold up into thirds, then turn the whole thing inside out... the pocket will be one side of the bag/ blanket the other side! Hope this helps!
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