For Kayli/the-metaphysical-shinigami - How I weave in my loose threads when I change colours (and this is by no means a definitive best way to do it, probably).
Photo 1: Here I’ve woven the thread in through the loops of the knitting.
Photo 2: Pulling the wool not crazy tight, but enough so the stitches bunch up a little.
Photo 3: Trim the wool left - I trim my wool on an angle as I find it is less noticeable than a bluntly cut piece of wool.
Photo 4: Here I have pulled the stitches back out again to the left so they aren’t all bunched up - this means the bit sticking out that was trimmed has now been pulled into the knitting.
I hope this is vaguely helpful - I’m so sleepy that maybe it is useless ^__^;;