forgot to add...while learning to knot, and even for a while afterwards, clamshell crimp covers are your BFF! they cover all sorts of errors. especially if it is a piece you're just making for yourself - almost done with that 36 inch rope, when suddenly a knot slips and you have a gap in your strand? no do-overs - just cover/fill that gap with a crimp cover! just looks like a nice little random gold or silver bead.