what knot do you use for lacing?
 When tying the half-knots, a right-over-left half-knot followed by a left-over-right half-knot or vice versa forms a square or reef knot, a fairly effective knot for the purpose of tying shoelaces. However, tying two consecutive right-over-left half-knots or two consecutive left-over-right half-knots forms the infamous granny knot, which is much less secure. 