Remember when I was making all those wine and casserole totes for my friends a few weeks ago? I did them assembly-line style, and I tried this "quick sewing technique." Instead of stitching each seam independently (and trimming the threads, etc. before moving on to the next piece), I just kept feeding the next piece under the machine foot as soon as the previous piece was clear.
It worked really well for things like doing all 18 handles - 18 versions of the same pattern piece. This was a time when I didn't have to think about the next seam, because they were all the same.
I'm not as convinced that it would work well for assembling a single garment - where you rarely sew the same seam more than twice (2 sleeves, 2 shoulder seams, 2 side seams, etc.).
So, how about you? Do you sew like this? If so, when - on lots of projects, or mostly just when you are sewing multiple copies of the same pattern pieces? If not, why not? Any suggestions or recommendations? Any other "speed sewing" techniques you can recommend?