Ok, for those of you asking about how I do my plaids, I've made up a little tutorial for ya!
#1 Make a base bead (usually white) and add a fairly thick straight stringer of transparent color around the center.
I then use a thin stringer of an opaque colors on top of the fat trasparent and go around the center.
I then place in 4 (or 6 if you put the lines together close) going from hole-to-hole in 4 equal spaces around the bead. I use either opaque or transparent.
I then go around the bead on each side of the 1st large line around the center of the bead with thin stringer in either transparent or opaque.
I usually use 2 opaques and 2 transparents or really whatever would look good! This is an excellent practice for stringer control!! Trust me!! Here's an example of some recent plaids I did. As you can see there are endless color combos that you can play with!

Hope this helps out!!
editted for photo upload correction