I use 100% cotton thread for piecing and quilting and I used to always run it through wax as I read somewhere it helps prevent tangles; I've since stopped doing this because a) I'm lazy :oops: and b) I wasn't sure it reallly made a difference. I probably work with too long a length of thread to reduce knotting and rethreading the needle and I do find I get knots fairly frequently - I think I've just answered my own question, but what does anyone else think?
K x