How to change color in garter stitch/how to add stripes in garter stitch by clydknits.about :

Switching colors in knitting. Pick up the tail end of the new color in your right hand and lay the yarn between the needle tips. Take the yarn in the previous color (in my case it is the white yarn) and put it on the left side. To change the yarn color, tie the new yarn around the old yarn strand.

Knit a plain round before you switch colors in ribbing. The museum of london collection boasts a lovely child's mitten that dates to the tudor era. No tying, nothing difficult at all.

Changing yarn color or adding a new ball of yarn is. Clydknits is pakistan's first ever professional knitting channe. Keeping the tail of the new color in place.

Give the new tail a good tug to pull down the loop around your knitting needle and create a stitch. After knitting an entire row of the new color, you can untangle the knot and weave the tail into the fabric. To add a new color of yarn in the middle of a row, simply drop the yarn you were working with, and begin working with the new color as you would if you were changing colors.

Hold the working end of the yarn in your usual way. In the image below you can see how the yarn twists. Just a little hook right that we will put.

Once the yellow is pulled to the side take the white yarn and twist it over top the yellow and knit as you normally would. Here too we cross the yarns again. Knitting with 2 colors on the same row or round dates to at least the 1500's.