I saw your question earlier today and was gonna say the same thing, but I did wonder if somebody knew something I didn't.
So, I've done two projects recently with two strands and just let them twist, wondering if that was the right thing to do (Ingrid is laughing out loud at me, now.) If I got a knot or snag I hollered for help from my husband who is a second generation untwister .. i.e., learned doing it for his mother and now assists me. Another set of hands is great if you get toooooo twisted and need an unwind.