Well, my best success rather than get up and get one at a time is Eleanor Burns method of vertical rows. Fold over right over left, first one on top, second, etc. If I manage to get them to the machine in the right direction, this goes pretty fast. But I've been known to turn the stack in the two steps it takes. Lately I've put a pin on the right side of the first one and put them down in that direction. Then the third and fourth, etc, and then put them together and then the horizontal seams. I leave them all connected after the "assembly line sewing" and then they go over the horizontal rows and match up pretty well. For me. I am not so good at the precision.
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