I was looking at this this lady's latest blog post and was interested to read her query as to the correct noun to use when referring to someone who sews. Funnily enough, I had this same quandary a day or two ago when listing a new notepad for sale:
Is this suitable for a sewer (ratty, smelly-sounding word!) or a sewist (quite like this one!!)??
Which should it be? Answers on a postcard please!!