Originally Posted by MerigoldinWA
I never use knots of any kind in knitting, and don't know that I could recommend them.
I should have clarified--I use a slip-knot to change colors, and then I undo it and weave in both ends.
I don't recommend leaving knots in, either--at best, they just work their way through to the front of the fabric.
Anyway, you're doing stripes, which is neither intarsia nor stranding.
You can either cut the yarn (leaving a tail, as described earlier) at each change, or carry the yarn end up the garment the next time you use that color. It just makes the seam a bit more bulky. With such small stripes, I'd carry it.