I have found the ABSOLUTE BEST WAY to do two-colour knitting
I find that even leaving a strand to run across even two stitches makes a loop that can get caught on things, and its really hard to get the tension right.
Trying to weave the colours together either takes ages, or gets you in a tangle.
This JUST WORKS. I can't describe how easy it is either. I tried it for the first time last night, and now I feel like a pro, its so intuitive.
It opens up the possibilities for so much intarsia and fair-isle knitting I cant wait to get started...