What do you do when there is a knot in your yarn?
It happens sometimes, you are working and all of a sudden there it is a knot. No one really wants a knot in the middle of their project, right? Sometimes if I want to keep my momentum going, I will start a stitch then move past the knot to finish the stitch. I make my ends on each side of the knot are long enough to weave in.
Sometimes I will rip out to start new yarn at the beginning of a row. Now if you were working on variegated or ombre color yarn you would take into consideration the color changes and matching them up.
Then once I have my project complete I will cut the knot and weave in my ends with all my other ends.