The best class I ever took was a serging class where we made a booklet that we could use in the future. We made notes on the settings, feet and type of thread we were to use. We ended up with a sample and everything we needed was there when we went back to it in the future. I have used this booklet many many times.
I have taken classes where I could do it in the class but by time I went back to try I couldn't remember anything.
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